Hog Health

Santa’s Reindeer Get Final ‘All Systems Go’ for Christmas Eve Flight

Tue, 23 Dec 2025 14:50:54 GMT

In a jolly early-holiday announcement that’s sure to delight children (and adults who leave out cookies and carrots), Santa Claus’ elite team of flying reindeer has officially been cleared for takeoff! A festive and thorough veterinary checkup has determined the magical hoof-powered squad is in tip-top shape, ready to soar around the globe on their most important night of the year.

Just like other livestock, Santa’s reindeer need to be examined and issued health certificates in order to cross national borders. Luckily, the American Veterinary Medical Association’s president, Dr. Michael Bailey, braved the snowy terrain of the North Pole and completed their annual wellness examinations . He had a list and checked it twice.

Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner, Blitzen and Rudolph all passed and are fit to fly for Christmas Eve!

Although the details of the exam are largely kept under wraps, it is expected the reindeer underwent a comprehensive series of physical tests — sleigh-pulling fitness, nose-shining inspections and hoof health evaluations — designed to confirm they can handle rooftops, chilly winds and chimney obstacles.

According to the official Certificate of Inspection, the reindeer have also been declared clear of:

Tuberculosis
Chronic wasting disease
Sugarplumitis

Following suit, the U.S Department of Agriculture’s Animal and Plant Health Inspection Service has issued a transit permit to Mr. S. Nicholas Claus of the North Pole, allowing reindeer to enter and exit the U.S. on Christmas Eve through or over any U.S. border port.

In true festive spirit, the AVMA invites clinics everywhere to join Santa’s E.L.V.E.S. (Emergency Landing and Veterinary Expert System) support network and spread cheer (and animal health tips) far and wide.

5 Livestock Diseases That Could Impact U.S. Food Security and Economic Stability

Thu, 11 Dec 2025 20:45:00 GMT

Production animal disease outbreaks are not only animal health events but threats to economic stability and food security. A new report from The Farm Journal Foundation , The Mean Sixteen: Biosecurity Threats Facing U.S. Agriculture, estimates the collective annual costs to U.S. agriculture due to outbreaks of the top five livestock diseases could top $300 billion without proper preparation.

“It is absolutely crucial that the U.S. should support mechanisms to protect farmers from risks and make sure that our food supply chain can remain resilient even when challenges occur,” wrote Stephanie Mercier, senior policy adviser at Farm Journal Foundation.

Mercier identifies five diseases with the potential to disrupt U.S. livestock production, trade and response infrastructure at scale. These include foreign animal diseases as well as ongoing threats:

Foot-and-mouth disease (FMD)
African swine fever (ASF)
New World screwworm (NWS)
Highly pathogenic avian influenza (HPAI)
Porcine reproductive and respiratory syndrome (PRRS)

Foot-and-Mouth Disease: Trade-Stopping Risk to U.S. Livestock

Foot-and-mouth disease, an infectious and sometimes fatal viral disease affecting a range of ungulates, remains one of the highest-impact foreign animal disease threats to U.S. agriculture. While the U.S., Canada, and Mexico are classified as FMD-free, outbreaks in Taiwan (1997), the United Kingdom (2001), and this year in Germany and Hungary, represent how relevant this disease remains as both an animal health and economic threat.

Modern production systems characterized by high animal density and frequent interstate movement would complicate containment efforts in case of an outbreak. In 2015, a report from Kansas State University found an FMD outbreak beginning in a U.S. state with high populations of vulnerable livestock could cost nearly $200 billion to the U.S. economy if no emergency vaccine program was implemented.

A 2018 provision to the farm bill mandated the establishment of an animal vaccine bank; FMD was chosen as the first disease for vaccine stockpile. While FMD vaccines reduce an animal’s chance of being infected, they are generally not administerd in FMD-free regions as it is difficult to distinguish between vaccinated and FMD-infected animals in a clinical setting. Further, World Organization for Animal Health (WOAH) protocols allow for trade bans to be imposed on countries using these vaccines.

African Swine Fever: Persistent Threat to U.S. Pork Production

African swine fever has expanded globally over the past decade and remains one of the most significant threats to the U.S. swine industry causing hemorrhagic fever with high mortality rates. In 2018, a massive ASF outbreak in China resulted in the loss of half of the country’s swine herd, approximately 225 million animals, and cost the country’s economy around $111 billion. Since then, ASF cases have been reported in countries across much of Asia and Europe .

(Farm Journal Foundation)

It has been estimated an ASF outbreak in the U.S. would cost the economy nearly $80 billion, due to loss of exports and reduced industry revenue, but could also affect the crop sector due to decreased feed demand. The extensive feral hog population across much of the country would further complicate containment efforts.

There is no globally available ASF vaccine; however, in May 2025, the WOAH adopted their first international standard for ASF vaccines . This was followed by the release of field evaluation and post-vaccination monitoring standards in July.

New World Screwworm: Reintroduction Risk and Surveillance Dependence

The NWS fly lays eggs in an animal’s skin, often at wound sites, and the hatched larvae burrow into the animal, consuming the flesh. Prior to 2025, NWS had been largely absent in the Western Hemisphere north of Panama; however, since the beginning of the year, outbreaks have been creeping northward, with most recent detection being just 120 miles south of the U.S.-Mexico border.

The USDA estimates that if NWS were to cross the border into Texas, it could cost the state’s economy at least $1.8 billion while putting the rest of the U.S. beef sector at risk. In an effort to tackle this threat, the USDA announced a five-pronged plan to combat the pest including sterile fly production, closing of the U.S.-Mexico border to cattle trade and increased communication with state animal health officials.

The same sterile male fly technique that eradicated the pest in the U.S in 1966 is being applied for the current outbreak, with sterile fly production facilities open in Tampico, Mexico and opening in Edinburg, Texas .

While no NWS cases have been detected in the U.S. yet, the fly is still having an impact on the economy. With the U.S.-Mexico border closed to cattle imports , the already reduced U.S. cattle herd could shrink even further. With strong demand supporting U.S. beef prices, Omaha Steaks CEO Nate Rempe predicts ground beef prices could reach $10 per pound by the third quarter of 2026.

(Farm Journal Foundation)

Highly Pathogenic Avian Influenza: An Ongoing Multispecies Challenge

Highly pathogenic avian influenza remains an evolving threat to U.S. animal agriculture. Twice in the past decade, major outbreaks in the U.S. have devastated poultry operations with losses of over 50 million commercial birds from 2014 to 2015. The latest HPAI outbreak began in 2022 and has since been detected in flocks in all 50 states resulting in an estimated loss of 169 million birds as of April 2025.

(Farm Journal Foundation)

HPAI is a zoonotic disease with reported infections in humans, hogs, cats and dogs. In March 2024, HPAI was detected in dairy herds in Texas and Kansas. Since then, HPAI outbreaks have been confirmed in over 300 dairy herds across the U.S. in 14 different states.

The 2014 to 2015 HPAI outbreak is estimated to have cost U.S. agriculture over $1 billion when accounting for losses to both the poultry and animal feed sectors, as well as losses in land value. Both this outbreak and the subsequent 2024-25 outbreak caused significant spikes in egg prices, with March 2025 prices rising to 350% of those of the previous year. U.S. milk prices have not yet been affected by the outbreak.

(Farm Journal Foundation)

Porcine Reproductive and Respiratory Syndrome: Endemic Disease, National Cost

The infection of hogs by PRRS has had a significant impact on the U.S. pork industry. First detected in the U.S. in 1987, PRRS infection causes pregnancy loss in sows and respiratory problems in pigs of all ages leading to poor performance. Unlike other animal diseases, PRRS infection can go undetected until issues with pregnant sows occur.

Analysis from Iowa State University shows PRRS caused an estimated $1.2 billion per year in lost production in the U.S. swine industry from 2016 to 2020. This marks an 80% increase over numbers reported a decade earlier.

With no cure at present, disease impact is minimized through biosecurity practices, vaccinations and management of infection with antibiotics. In April 2025, FDA granted PIC approval for the gene edit used in its PRRS-resistant pig. This technology could have a large impact on animal welfare, production costs and pork prices if adopted, though any impact is likely many years out.

Policy and Preparedness Implications for U.S. Animal Health

Across these diseases, the report identifies recurring gaps in U.S. animal health preparedness that extend beyond individual pathogens and suggests some key policy and infrastructure needs to help mitigate these threat risks:

Improved national biosecurity coordination including culling guidelines
Training for veterinarians for outbreak identification and reporting
Support for vaccine stockpiling programs and prioritized regulatory approvals for prevention and treatment products
Increased research support for both international collaboration and domestic work on biological control techniques of pests and pathogens, and disease-resistant genetic traits

“Investing in agricultural research, development and the long-term viability of our food supply chain is critical for protecting our national security and economy, and we are hopeful that our nation’s leaders will rise to meet this challenge before it’s too late,” Mercier writes.

The Farm Journal Foundation is a farmer-centered, non-profit, nonpartisan organization, created by Farm Journal in 2010, working to advance agriculture innovation, food and nutrition security, conservation and rural economic development.

Veterinarian Becomes Disease Detective: Nichols Connects Animal Disease and Human Health

Tue, 07 Oct 2025 19:24:05 GMT

Growing up on a New Mexico ranch, veterinarian and public health leader Megin Nichols says she learned early the health of animals, humans and the environment are deeply connected.

Initially planning to practice small animal medicine, she says her plans began to pivot when she met a Centers for Disease Control and Prevention (CDC) epidemic intelligence service officer who sparked her interest in public health. That realization led her to pursue a master’s degree in public health at the University of Minnesota, with a focus on food safety and biosecurity. Her career has included roles in local, state and federal health departments, investigating foodborne illness outbreaks and developing strategies to prevent them.

“Life has a way of taking you in places you never anticipated,” she shared during the 2025 Henry C. Gardiner Global Food Systems Lecture Oct. 6 at Kansas State University.

Today, as the CDC’s director in the division of foodborne, waterborne and environmental diseases, she lends her expertise to efforts involving disease investigation, food safety, antimicrobial resistance and agriculture literacy.

Megin Nichols has more than 15 years of zoonotic disease experience and has served at the federal and state levels. She has served as the lead of the Enteric Zoonoses Team investigating multistate outbreaks of Salmonella and E. coli. Prior to joining CDC, Nichols worked as the Principal Investigator of the Active Bacterial Core Surveillance Program at the New Mexico Department of Health for five years.

(Angie Stump Denton)

One Health: Connecting Animal Disease and Human Health

Nichols’ work focuses on the One Health concept.

“One Health is recognizing the health and well-being of humans, of animals and our environment are all interconnected,” she explains. “One Health is something that many of us do every single day and are very, very aware of, especially if you have ties to agriculture and the land. But One Health as a concept oftentimes is difficult to fully understand.”

Nichols says One Health is:

Ongoing relationships with animal agencies.
Understand the culture of agriculture.
Having access to integrated human and animal surveillance.
Protocols for conducting joint response investigations.
Agreements for sharing biological samples and lab results.
Established lines of communication with agriculture and animal industry.
Plans for unified communication messaging.
Need to build linkages and trust before and outbreak.

“What happens in one area can significantly impact others — whether it’s a wildfire, a disease outbreak or environmental changes,” Nichols summarizes.

Pandemic and Disease Response Insights

Nichols was a leader in investigating and finding unique solutions for the livestock industry and specifically meat packing industry related to COVID-19.

“In April 2020, I got a call from my supervisor saying there are some meat, poultry packing plants that are going down because of labor shortages and illness,” she explains.

She selected and lead a team to figure out how to get the plants opened back up safely and to find unique solution to deal with the related animal welfare issues.

Summarizing the experiences, Nichols reports the estimated economic cost of COVID-19 is $14 trillion. Along with supply chain disruptions the industry experienced changes in consumer behavior, labor shortage and complex operations challenges. On a positive note, she says the industry did experience a lot of innovation and uptake of technology due to the pandemic, which resulted in innovative approaches to workplace safety and communication.

“We saw innovative strategies where if one person got sick, they looked around that worker and said, ‘OK, who do we need to monitor quickly for symptoms?’” she says.

Nichols also discussed the increase in salmonella outbreaks during the pandemic. She links the rise to the increase in backyard poultry ownership and the improper handling of backyard chickens.

“Many new chicken owners were unaware of disease transmission risks,” she explains.

Nichols also shared insights to H5N1 influenza and emphasized the complexity of tracking and preventing. She highlights the need for integrated, cross-species surveillance and communication strategies.

She also touched on emerging threats, including New World screwworm (NWS) . Her message emphasized the importance of prevention, control and preparedness.

She shares these five key strategies related to NWS:

Surveillance. Early dection through wound inspections and reporting in livestock.
Sterile Insect Technique (SIT). Ongoing release of serile male flies to prevent reproduction.
Biosecurity. Movement control of imported animals and monitoring at entry points.
Public Awareness. Education for doctors, ranchers, veterinarians and travelers.
Rapid Response Planning. Multi-agency coordination to contain outbreaks swiftly and deploy sterile flies.

Agricultural Literacy, Communication is Key

“Growing up in the middle of nowhere, I also came to understand that not everyone appreciates — or even understands — where their food comes from,” Nichols says.

She shared a 1993 study that revealed significant gaps in public knowledge about agriculture. She summarizes understanding food systems involves knowing:

Where food comes from.
How it’s produced.
Its impact on economy, environment and technology.

Throughout her lecture she shared the importance of transforming complex scientific concepts into engaging, accessible insights that resonate with students, farmers, ranchers and public health professionals alike.

“It doesn’t matter how much information we have if we don’t get it out to the people,” Nichols says.

She stresses the importance of agricultural communication specialists in translating scientific information and engaging audiences.

“Don’t leave the communications to the scientists,” she says.

Nichols emphasizes that agricultural literacy and effective communication are crucial for bridging knowledge gaps and building public understanding of food systems.

She shares this advice for agricultural advocates:

Bring agricultural perspective to discussions by speaking up and sharing lived experiences.
Challenge misconceptions with personal stories by focusing on storytelling rather than technical details.
Understand your audience and use relatable language and provide context.

Nichols stresses the importance of preparedness and collaboration. She explains the importance of local-level discussions and community preparedness, suggesting that some of the most effective emergency preparedness conversations happen “at the coffee house” or during casual community gatherings.

Winter: The Secret to Slowing the Spread of Screwworm

Thu, 02 Oct 2025 11:04:21 GMT

Winter or colder temperatures — it’s not something you typically hear livestock producers anticipating or praying for. But this year, as the threat of New World screwworm continues to inch closer to the U.S.-Mexico border, winter can’t come soon enough.

“Certainly, winter will be our friend,” says Chris Womack, a veterinarian and rancher from San Angelo, Texas. “Historically the flies were pushed south with frost.”

USDA Agricultural Research Service entomologist Kim Lohmeyer agrees we need winter to come fast. Lohmeyer serves as the laboratory director of the Knipling-Bushland U.S. Livestock Insects Research Laboratory in Kerrville, Texas, where she and her colleagues use modeling to know when and where NWS may show up in the U.S. They are partnering with Lee Cohnstaedt and his team at the National Bio and Agro-Defense Facility in Manhattan, Kan., to study the life stages of NWS and its susceptibility to temperature and weather.

“With the climate changes and weather patterns we have now, if this fly gets here, it can go a lot further north, a lot further east and a lot further west,” Lohmeyer says. “It’s something to keep an eye on.“

The Winter Win

So, what exactly does “winter” mean? Lohmeyer says NWS are fairly cold sensitive, so several days of sustained cold temperatures in around 30°F would be enough to suppress NWS.

The NWS’s ability to survive is restricted to locations where low temperatures are regularly above freezing. Ideal adult fly activity occurs at 77°F to 86°F and relative humidity of 30% to 70%.

“This fly really loves 81.5°F,” explains meteorologist Matt Makens. “The research shows that’s when they’re friskiest.”

Although the Sterile Insect Technique (SIT) remains a primary control mechanism, Makens says studies have made it clear that eradication success, outbreak intensity and re-emergence potential are closely tied to weather and climate.

“From seasonal wind patterns to monsoonal moisture, numerous environmental conditions shape the life cycle, spread and population dynamics of this parasite,” Makens explains. “Understanding these weather-related drivers is critical not only for control, but also in considering how long-term temperature trends have altered the geographic boundaries of screwworm viability since the major outbreaks of the 1950s and early 1960s.”

During a recent Cattlemen’s Call podcast Makens said weather is one of the main forces of spreading NWS.

“If we could control the weather, we could control the fly,” he stresses.

(Maps: Makens Weather)

Research indicates larval and pupal development cannot proceed below approximately 58°F and halts above 110°F. The optimal temperature for adult survival and reproduction lies around 81.5°F, a range common in tropical and subtropical climates like Mexico and Central America. NWS do not survive in regions with cold winters, though they may spread into these areas during the warmer months.

Impact of temperature on NWS:

Reduced activity: Adult screwworm fly activity is limited when temperatures are below 59°F.
Larval vulnerability: Pupae are vulnerable to soil temperatures below 46°F. Sustained maximums hotter than 95°F can also be limiting — extreme heat reduces adult fly activity and increases mortality in larvae exposed to hot surface soils.
Life cycle: While the entire life cycle can be completed in warm conditions, it takes longer in cooler, more temperate environments.

“One of the secrets to historically, the northern limit of screwworm, was basically a matter of how cold the winter got. That sort of limited how far it got,” says Derrell Peel, Oklahoma State University Extension livestock marketing specialist. “In years when it was warmer, it would go farther. It would overwinter farther north, but in general, that’s going to set the upper limit, or at least it does if it’s not under control in any other way. That will limit its northward, northern movement, for sure.”

1972 NWS data (A) Monthly maps of observed cases of myiasis in Texas during the 1972 outbreak. Highest abundance occurred in August, and the length of all other density colour bars were scaled to it (bars in right hand margin of each map). The maximum density is at the top of each colour bar with the highest midseason incidence occurring in south central Texas. (B) Histogram summarizing the monthly total statewide data. (C) Map of total cases of myiasis during 1972.

(Medical and Veterinary Entomology)

Fly Season

David Anderson, Texas A&M professor and Extension specialist, says, historically, the fly season is April to October.

“If we get a really cold winter, that helps us,” Anderson adds. “It buys us some more time. But things are warmer now than it used to be. Fly season may not be that April to October anymore.”

NWS’s typical life cycle lasts about 21 days in warm weather and slightly longer in cooler climates. According to Texas A&M AgriLife Extension Service, NWS fly life cycle is highly sensitive to temperature:

In warm (more than 80ᴼF daytime highs) and tropical conditions, the full life cycle may be complete in two to three weeks.
In more temperate conditions, the life cycle may take three to four weeks.
In cooler conditions, the life cycle may take up to two to three months.

It is important to understand that the flies do not die at these lower activity temperatures, but prolonged exposure to these temperatures can reduce populations or active infestations.

Texas rancher Wayne Cockrell says NWS’s entry into the U.S. is inevitable but suggests winter and colder weather might temporarily delay the spread until next April or May. Cockrell serves as the Southwestern Cattle Raisers Association director and chair of the cattle health and well-being policy committee.

“We should be within 60 days hopefully when cold weather helps in two-thirds of the state,” Cockrell explains.

Rainfall and Monsoon Factors

Makens says while temperature defines where screwworms can survive, rainfall and moisture influence when and how intensely they can thrive. Outbreaks often follow moderate to heavy rainfall by improving conditions for larval survival.

He explains tools like the Palmer Crop Moisture Index (CMI) have shown promise in predicting screwworm risk, with higher-than-normal CMI values sometimes preceding population spikes.

When rainfall coincides with favorable temperatures, screwworm activity tends to increase. In contrast, hot and dry conditions tend to suppress survival and reproduction.

“One of the most striking climate connections is the role of seasonal monsoon winds in transporting screwworms over long distances,” Makens explains. “In multiple outbreak years, adult flies were documented migrating northward into Texas and the desert Southwest via the North American Monsoon (NAM) — a seasonal pattern that delivers moisture to northwestern Mexico and the U.S. Southwest from June through September. During the summer, prevailing winds shift from west to a more humid, southerly flow, creating favorable conditions for fly migration from central and southern Mexico into their northern states and, at times, into the southern U.S. The NAM this year had an early start and gave significant rainfall to parts of Arizona and New Mexico. The NAM typically calms by early fall.”

In the 1960s, these wind-assisted movements allowed the temporary re-establishment of breeding populations even after local eradication. In some years, migration spanned hundreds of miles, connecting source populations in northern Mexico to re-infestations in Arizona and New Mexico.

“This atmospheric ‘conveyor belt’ remains a critical concern in surveillance strategies for livestock-producing regions of the Southwest,” Makens says. “The 2025 monsoon was undoubtedly a factor in the most recent northward migration of NWS.”

If NWS should cross the border, it will be key for producers to coordinate management practices with weather patterns expected for their region.

“Ultimately, weather patterns act as both a barrier and bridge for screwworm activity,” Makens summarizes. “Knowing how and when the balance tips is essential to preventing the return of one of the industry’s most damaging parasites.”

Here’s to hoping Old Man Winter decides to arrive quickly and help buy livestock producers and government leaders more time to prepare to battle NWS.

Your Next Read: The Battle at the Border

U.S.-Mexico Border Battle Continues As the Threat of New World Screwworm Intensifies

Wed, 24 Sep 2025 21:29:05 GMT

With New World screwworm (NWS) confirmed just 70 miles from the U.S. border , producers, government officials and industry leaders are taking action. Finding NWS along one of the most heavily trafficked commercial thoroughfares in the world from Monterrey, Nuevo Leon, to Laredo, Texas, is a red flag for the industry. Emphasizing the importance of maintaining strong safeguards, it’s time to plan for not “if but when” NWS crosses the border.

On Monday, Secretary of Agriculture Brooke Rollins confirmed protecting the U.S. from NWS is non-negotiable and a top priority for President Trump.

UPDATE ON SCREWWORM THREAT:

Protecting the United States from New World Screwworm is non-negotiable and a top priority for @POTUS.@USDA landed boots on the ground this morning in Nuevo Leon, physically inspecting traps and dispersing sterile flies after the detection of the…
— Secretary Brooke Rollins (@SecRollins) September 23, 2025

“The southern border remains closed to livestock trade, and we are aggressively expanding trapping and surveillance,” she wrote. “At the same time, we’re expediting operations at our sterile fly dispersal facility at Moore Air Base in Texas .”

On Tuesday, Secretary of Agriculture Brooke Rollins reported 80,000 sterile flies were released on “spot” and nearly 200 surge staff had been deployed to Mexico.

Thank you, @IngrahamAngle, for paying attention to this important issue. Due to multiple failures from our southern neighbors and failure to act in the last Admin, the devastating parasite New World Screwworm is knocking on our southern borders door. We’re not waiting, we’re… pic.twitter.com/ZO5Vx5oes8
— Secretary Brooke Rollins (@SecRollins) September 24, 2025

Mexico’s Response To New World Screwworm

According to Reuters, Mexican’s agriculture ministry said there is no risk of adult screwworm fly emergence due to the early detection of the infected bovine, which was confirmed on Sept. 21. The infected animal was in a shipment of 100 animals originating from the Gulf Coast state of Veracruz, according to the statement.

Fly traps in northern Mexico have not detected a single screwworm fly.

U.S.-Mexico Border Remains Closed to Cattle Trade

The Mexican border closure remains a topic of debate. The September Ag Economists’ Monthly Monitor found 80% of ag economists surveyed oppose reopening the border to Mexican cattle due to screwworm risks.

(Farm Journal)

The border closure has created significant division within the cattle industry with producers, feeders and industry leaders on both sides of the fence.

“We have some cattle people that are glad it’s closed. We’ve got others who are hit pretty hard and are not happy about it,” explains David Anderson, Texas A&M professor and extension specialist — livestock and food product marketing.

NWS is a threat the industry can not ignore, says the ag economist with more than 30 years under his belt.

“I think this is the most serious problem the industry has faced since I’ve been a livestock economist,” he stresses.

From his perspective, keeping the border open with heightened monitoring and surveillance could have potentially been more effective than implementing a total closure.

“If we go back and look at data from the early ‘70s, when we had a big screwworm outbreak in the U.S. and Mexico, the border was open,” he says. “I probably would have leaned to not closing the border to begin with. I understand why you would want to do that, but I don’t know that it’s ended up reducing the likelihood that we’re going to get screwworms, and yet we’re paying a price for that.”

According to Anderson the economic consequences to the border being closed are:

Significant loss of approximately 26,000 imported cattle weekly
Estimated 18% reduction in cattle placements in Southern plains
Contributed to tighter beef supplies and higher consumer prices
Substantial economic hit to cattle feeders and ranchers

At this point, he’s quick to admit keeping the border closed is the best option.

When it comes to reopening the border, Derrell Peel, Extension livestock marketing specialist with Oklahoma State University, suggests the decision is not straightforward.

“Given everything I’ve experienced, it’s probably prudent to leave the border closed,” he says.

He adds any reopening should be “under very, very controlled, limited circumstances.”

Peel emphasizes the need for a collaborative approach with Mexico.

“We’re kind of in it together, and so whether it’s here or there, we’ve got to work together,” he summarizes. “We’re going to need to control it in both places. Otherwise, it’s not going to benefit either one of us.”

He also points out not everybody in Mexico is sorry the border is closed. For example, cattle buyers in Mexico can source cattle cheaper because the border is closed.

“Keeping the border closed does affect the movement of cattle south of the border ... it builds a backstop for cattle movement north,” he adds.

Peel notes cattle from Central America to Panama have increasingly made their way to the Mexican market, which validates NWS movement in Mexico and why recent confirmation has occurred.

“The longer this goes on, the more the Mexican industry will adjust,” he says. “It might permanently change the way the [U.S. and Mexico] work together.”

Texas Rancher Weighs In On Impact of New World Screwworm

Texas rancher Wayne Cockrell says the parasite’s entry into the U.S. is inevitable, suggesting that winter and colder weather might temporarily delay the spread until next April or May. Cockrell, who serves as the Southwestern Cattle Raisers Association director and chair of the cattle health and well-being policy committee, recently joined AgriTalk to talk about NWS.

“We would much rather stop this on Mexico’s southern border than our Southern border,” Cockrell says.

Mexican feeder cattle traditionally represented 30% of Texas feedyard inventory, he adds, but with current restrictions, feedlots are adapting.

“I think a lot of those feedyards have moved to the dairy-cross side,” he adds. “They have had to change the way they do business.”

Noting the broader economic implications of the border closure, 1.2 million fewer cattle for Texas represents “about two weeks” of impact nationwide, according to Cockrell.

“Winter and sterile flies is what we need now,” Cockrell summarizes.

Your Next Read: The Smell You’ll Never Forget: A Calf Infested with New World Screwworm

Protect Your Livestock: Signs of New World Screwworm

Tue, 01 Jul 2025 15:45:16 GMT

Lizeth Olivarez doesn’t know if people will have the stomach to deal with New World screwworm (NWS). She’s a sixth-generation rancher who runs cattle in the U.S. and in Mexico at Las bendiciones Ranch in Realitos, Texas, and Rancho El Cuellareno in Guerrero, Tamaulipas.

Although she hasn’t experienced it herself, she has grown up hearing story after story about NWS from both her grandfather and father who dealt with NWS when the deadly fly struck in the 1960s. With reports of NWS in seven states in Mexico, the U.S. continues to bolster its defenses to keep the pest out.

(USDA)

“The first time around NWS was eradicated by using sterile flies dropped from planes in a box that look like a Big Mac burger box with a target sign on it,” Olivarez says. “The only way to eradicate the NWS is with sterile flies.”

Secretary of Agriculture Brooke Rollins announced a five-pronged plan to combat NWS on June 18 partnering with Mexican counterparts and using this sterile insect technology to stop the spread.

“It’s important to clarify we currently don’t have [NWS] here in the U.S.,” says Russ Daly, Extension veterinarian for South Dakota State University.

He admits it’s a strange name for a fly – New World screwworm – because it makes you think it’s a worm.

“It’s not actually a worm – it’s the larvae of the NWS fly that deposits its eggs in animals,” he explains. “They can get big in size, up to two-thirds of an inch. The first person who described them might have thought they look like little worms. They have ridges that are spiral, and that allows these larvae to burrow down into the animal. That’s how they get their name.”

The NWS fly lays eggs and larvae in open wounds of warm-blooded animals. Daly says NWS’s function is similar (but different) to a maggot. Domestic blow flies lay their eggs on dead tissue. The resulting maggots feed on the dead tissue. The difference with NWS is it lays its eggs on living tissue and will feed on living tissue.

“NWS is not easy to recognize,” Daly adds. “You really need an entomologist to recognize the fly and the larvae. For recognizing a problem in the animal, it might come down to recognizing a larval infestation that is showing up in unusual circumstances.”

(Lori Hays)

It’s Not Just a Cattle Problem
Megan Niederwerder, executive director of the Swine Health Information Center (SHIC), says it’s important to remember this is not just a cattle disease – it impacts other livestock species and humans as well.

(Lori Hays)

“The fly can deposit its larvae in any open wounds as well as surgical sites such as castrations and umbilical sites after a newborn animal is born. It can also deposit its larvae in any mucous membranes,” Niederwerder says. “Keep an eye on non-healing wounds or wounds that have a foul odor or bloody discharge.”

She says the animals often feel discomfort and pain due to this non-healing wound so they may isolate themselves and be off feed.

“It’s really important to stay vigilant as we think about increasing awareness and understanding of what the fly looks like,” Niederwerder says. “We also need to understand what the clinical signs may look like as the introduction and incursions in Mexico have increased the risk for the U.S., too.”

Although the cases in Mexico have been primarily cattle, she notes there have also been cases in pigs, horses, sheep, goats, dogs and even in humans in Mexico.

“We really don’t like to think about that human part of it,” Daly says. “I don’t want to downplay it, but in people, we would certainly know when we have an irritation or when a fly is on us. But we need to think about the people who potentially are debilitated and wouldn’t know they have a fly on them for a long period of time or that something’s wrong.”

Watch Out for the Unusual
Olivarez urges producers to call their veterinarian immediately if they suspect NWS. During the 1960s outbreak in the U.S., she says most ranchers first noticed it around the umbilical cords of newborn calves.

“It affected ranches the most, especially those that had cattle out on the range where you need manpower to monitor for open wounds, cuts or sores of any kind as well as cows with newborns since the fly will attack the umbilical cord,” Olivarez explains.

She says it’s not only important to monitor cattle but also pay attention to wildlife and pets that live on your property since they could indirectly bring NWS.

Daly challenges livestock producers to pay attention to unusual situations. If you have an animal that suddenly has a lot of necrotic tissue that fly larvae (maggots) are trying to clean up, Daly says that’s a sign producers need to take seriously.

(Lori Hays)

“If there isn’t a wound or a very good reason why there would be an infestation of those larvae that should tip off animal owners, caretakers and veterinarians,” Daly says. “There needs to be some sort of break in the skin to attract the NWS fly, but that something can be so minuscule you wouldn’t even notice it.”

He says it could be as small as a bug bite and is often so tiny producers don’t know how the initial entry even happened.

“NWS does its damage by burrowing into living tissue,” Daly explains. “But they can be drawn to the animal through secretions from that minor break in the skin, and then start to invade the living tissue as well. In addition, once the NWS sets up the wound and causes the infestation, normal blow flies then can come in and get in there, too.”

(Lori Hays)

The females lay their eggs very quickly, he adds. It doesn’t take long for the larvae to develop from there. He says the flies like to deposit their eggs on their “victims” in the afternoon.

“They choose this timing because when it cools off at night, it helps the development of the eggs into the larvae,” Daly says. “This all happens within 10 to 12 hours. If you have a fly that gets into a nick on a pig in the afternoon, for example, by next morning, there’s larvae starting to burrow in already.”

The fly has a lifespan of 28 days, Olivarez shared with followers of Texas Farm Bureau on TikTok.

@txfarmbureau Ever heard of the New World screwworm? South Texas rancher Lizeth Cuellar Olivarez breaks down why this tiny pest is a big problem for livestock. #texasfarmbureau #agtok #farmtok #fyp #screwworm ♬ original sound - texasfarmbureau

“During this time, NWS can lay eggs four times and lay 300 eggs each time,” Olivarez says. “If it goes untreated, after three weeks the larvae will fall and convert to a fly that then goes looking for another animal to attack.”

Treatment Tactics Aren’t Pretty
If an animal becomes infested with NWS, treatment is not easy or pleasant. The larvae have to be removed, Daly explains.

“NWS does respond to some insecticides that we would use for show pigs or horses during the summer to keep the flies off,” Daly adds. “But in order to get that animal healed up, the larvae have to be flushed out and removed by a veterinarian. These infestations can lead to secondary infections to worry about. And, if the infestation has gone deep enough, there could be severe muscle damage or damage to other organs that are beyond help.”

Treatment products need to be considered, adds Lisa Becton, assistant director of SHIC. Because of this, wound care is key during NWS infestation.

“If you have animals that have sores, it’s very important to treat that wound,” Becton says. “You may or may not be able to use a sealant, whether that’s iodine or antibacterial. Wound care is very important to help get a wound healing fast, even if you also have to use antimicrobials for an animal to help prevent other infection.”

It is treatable, but NWS is a painful event for animals and humans alike, Becton says. Rapid identification and action are critical.

Stay Alert, But Don’t Panic
Livestock trade and wildlife migrating due to different issues with climate and weather have helped move the infestation further north.

“The flies actually don’t fly that far,” he explains. “They typically fly less than 10 to 12 miles in their life span. So, they aren’t flying over on the wind and getting into these new places. It has more to do with animal movement.”

Fortunately, Daly says NWS is like any other fly in that they need somewhere to overwinter, so they won’t survive freezing temperatures. However, if they moved into this region in June or July, they would have a foothold until the frost.

“When we let our guard down and don’t look for it as much, or don’t use the sterile flies as often, that’s when things fire up again,” Daly says.

He says it’s not time to panic, but it’s important to be observant. The basics of good animal husbandry remain the most important thing for producers to focus on now.

“Sometimes it’s much easier said than done, especially in outdoor raising situations,” Daly says. “From fly control to monitoring animals, the best way to snuff something out like this quickly is good observation and animal care.”

Your Next Read: New World Screwworm: The Billion Dollar Battle at the Southern Border

Oregon Identifies 3 Human Cases of Avian Influenza in Farm Workers from Washington State

Fri, 01 Nov 2024 14:21:40 GMT

Avian influenza (bird flu) has infected three more people from Washington state after they were exposed to poultry that tested positive for the virus, according to health authorities in Washington and in Oregon, where the human cases were identified.

A total of 39 people have tested positive in the U.S. this year, including nine from Washington, as the virus has infected poultry flocks and spread to more than 400 dairy herds, federal data show. All of the cases were farm workers who had known contact with infected animals, except for one person in Missouri.

The people from Washington cleaned facilities at an infected chicken farm after birds were culled to contain the virus, the Washington State Department of Health said in an email on Thursday.

Officials tested workers who had symptoms, including red eyes and respiratory issues, and those with potential exposure to the birds, the department said. People with symptoms were told to isolate and given antiviral treatment, it added.

Oregon identified the three new cases after the people traveled to the state from Washington while infected, the Oregon Health Authority said in a Thursday statement. They have since returned to Washington, where public health staff are monitoring them, according to the statement.

There have been no infections among people living in Oregon and is no evidence of human-to-human transmission, the Oregon Health Authority said. It said the risk for infection to the general public remains low.

Since 2022, the virus has wiped out more than 100 million poultry birds in the nation’s worst-ever bird flu outbreak.

H5N1 bird flu was confirmed in a pig on a backyard farm in Oregon, the first detection of the virus in swine in the country , USDA said on Wednesday.

(Reporting by Tom Polansek; Editing by Lincoln Feast)

Your Next Read: Influenza Expert Gets Real About the H5N1 Risk to Your Swine Herd

Influenza Expert Gets Real About the H5N1 Risk to Your Swine Herd

Thu, 31 Oct 2024 22:11:28 GMT

Is influenza a greater concern to pigs and people in light of the Oct. 30 USDA announcement that H5N1 was detected for the first time ever in a pig from a backyard Oregon farm? If so, how?

Andrew Bowman, DVM, one of the country’s top swine influenza experts, joined The PORK Podcast to answer that question and more during a special report on H5N1. A professor in the Department of Veterinary Preventive Medicine at The Ohio State University, he is well known for his expertise in swine production medicine, veterinary public health and epidemiology.

“Across the swine industry, we routinely deal with influenza, so we’re pretty well versed in flu,” Bowman says. “But this adds a whole other character to the scene that we really don’t want and reassorting with the flu viruses we already have.”

This isn’t just something that will go away, he adds. This is a topic that’s becoming a bigger issue across the ‘entire proverbial barnyard.”

“Poultry has been dealing with this problem for a while. Dairy, this year, has joined the influenza game. Pigs have had our own endemic strain. The idea that high-path might be affecting pigs as well, and even if not, is a good warning sign the threat is there,” he says.

It’s an important topic for the pork industry to think about, Bowman points out. Oregon might be miles from your farm, but the threat isn’t going away. So, how are you trying to keep diseases such as influenza out of your herd with biosecurity protocols?

“We need to work together. I don’t think there’s much finger pointing left in the flu world. We’re all on the same bus, and we need to figure out how we manage this,” Bowman says. “Granted, it will be different in different species, but this is a problem everyone’s having to deal with.”

Listen to the podcast here as Bowman tackles some of host Jennifer Shike’s questions after hearing USDA’s announcement.

Your Next Read: USDA Reports First H5N1 Detection in Swine

Why Students Should Apply for the 2025 Summer Veterinary Internship Program Now

Wed, 30 Oct 2024 22:13:43 GMT

The Iowa State University College of Veterinary Medicine (ISU CVM) is seeking veterinary student applicants for summer 2025 swine, bovine and poultry internship positions.

Will Fombelle, DVM, is a veteran of several internships spread across his undergraduate studies in animal sciences and also into his veterinary school education. During the summer of 2012, he completed the Swine Veterinary Internship Program (SVIP).

“While in school, I took on the attitude of completing as many internships as I possibly could in order to not only narrow down my career choice but also my future employer. By participating in these programs, I was able to mold my interests into the fields of swine medicine and production which greatly accelerated my vision of where I chose to start my career in veterinary medicine at Carthage Veterinary Service,” he said in a previous PorkBusiness.com article .

Participants in the SVIP collaborate with a mentoring veterinarian or team of veterinarians at a production system or practice. Students are immersed in modern swine production and health daily and take the lead on designing and executing a field trial with guidance from mentors, ISU CVM said on its website . Students also take part in diagnostic test sampling and implement the principles and methods of swine diagnostic collection, testing and interpretation.

“Even if your university has classes well into the summer, you have a study abroad trip planned, a wedding or another reason you might not be able to commit to the entire 12 weeks, go ahead and apply,” ISU CVM encouraged. “Just note your availability in the section where it asks about conflicts. We can’t guarantee we can accommodate all schedules but if a student is selected we will try our hardest to be flexible and make it work.”

Applications are due Dec. 1, 2024 (late applications are accepted but higher priority will be given to those received by Dec. 1).

Apply here.

“These summer internships are the first exposure for students to the real world, and we should do our best to make each student’s experience a positive one,” Fombelle wrote.

Learn more here.

Your Next Read: Find and Develop Your Replacement in the Pork Industry

USDA Reports First H5N1 Detection in Swine

Wed, 30 Oct 2024 19:05:00 GMT

USDA announced on Oct. 30 the first reported case of H5N1 in a pig in an Oregon backyard farm. It’s important to note there is no concern about the safety of the nation’s pork supply as a result of this finding, USDA said. This farm is a non-commercial operation, and the animals were not intended for the commercial food supply.

“The confirmed case in Oregon poses no threat to consumer health or food safety; properly handled and cooked pork products remain safe for consumption,” Bryan Humphreys, National Pork Producers Council (NPPC) CEO said in a statement. “The entire pork industry remains committed to safeguarding food safety and human and animal health.”

The case was discovered on a backyard farm that includes a mix of poultry and livestock, including swine. The Oregon Department of Agriculture announced on Friday, Oct. 25, that poultry on this farm represented the first H5N1 detection in Crook County, Oregon. On Tuesday, Oct. 29, the USDA National Veterinary Services Laboratories also confirmed one of the farm’s five pigs to be infected with H5N1, marking the first detection of H5N1 in swine in the U.S., USDA reports.  

“The livestock and poultry on this farm shared water sources, housing, and equipment; in other states, this combination has enabled transmission between species. Although the swine did not display signs of illness, the Oregon Department of Health and USDA tested the five swine for H5N1 out of an abundance of caution and because of the presence of H5N1 in other animals on the premises,” USDA wrote.

The swine were euthanized to facilitate additional diagnostic analysis. Although test results were negative for two of the pigs, and test results are still pending for two others.  
The farm has been quarantined to prevent further spread of the virus. Other animals on the farm include sheep and goats that remain under surveillance.  

“USDA’s National Veterinary Services Laboratories (NVSL) has conducted genomic sequencing of virus from the poultry infected on this farm, and that sequencing has not identified any changes to the H5N1 virus that would suggest to USDA and CDC that it is more transmissible to humans, indicating that the current risk to the public remains low,” USDA wrote.

H5N1 detections include viral genome sequencing to provide additional information of interest to medical professionals and the research community to improve understanding of the virus. Genetic sequencing for these samples is underway, but results may be inconclusive due to low viral levels in the samples, USDA said.   

Pork Producers Practice Biosecurity to Protect Pigs
Biosecurity is critical to eradicating H5N1 and other viruses. Not only does biosecurity protect the health of livestock, but it also protects the health of farmworkers and their families. For more information on protecting farmworkers, visit the CDC’s website .
___________________________________________________________________________
10 Powerful Take Homes to Enhance Biosecurity on Your Pig Farm
___________________________________________________________________________

The pork industry has worked alongside USDA’s Animal and Plant Health Inspection Service (APHIS) since 2009 to carry out the swine influenza surveillance program to identify influenza viruses circulating in swine, proactively detect reassortment viruses that could impact public health, and gain knowledge to contribute to improved animal health diagnostics and vaccines, NPPC pointed out in a statement.

“Pork producers have always been proactive and diligent about implementing biosecurity plans as part of their daily production practices to assure animals wellbeing and food safety,” Lori Stevermer, NPPC president and Minnesota pork producer said. “This detection serves as a reminder for producers of all sizes to understand and address influenza virus risks.”

What’s Next?
USDA recently approved two vaccine field safety trials for vaccine candidates designed to protect dairy cows from H5N1, and continues to explore vaccine options for other species.   As USDA takes additional steps to protect the health of livestock, it will continue to work closely with CDC to protect the health of people and FDA to protect the safety of the food supply.

“These collective, collaborative efforts have helped protect farmworkers and farmers, the health and welfare of livestock animals, and reaffirmed the safety of the nation’s food supply. The U.S. government remains committed to addressing this situation with urgency,” USDA said.

Learn more about USDA’s response to HPAI in dairy cattle.

The situation is being monitored by local public health officials, Oregon Health Authority, Oregon State Veterinarian, Oregon Department of Agriculture, as well as USDA and U.S. Department of Health and Human Services.   

Read More:
Get the Facts Straight on Highly Pathogenic Avian Influenza
Animal Health Experts Open Up About Future Disease Preparedness
How the Swine Industry Responded to H5N1 Outbreak in Dairy Cattle
A Message to the Ag Industry about H5N1

Brazil Rules Out Three Potential New Cases of Newcastle Disease in Poultry

Mon, 22 Jul 2024 14:02:43 GMT

Brazil’s Agriculture Ministry said on Sunday it has ruled out three potential new cases of Newcastle disease in poultry after testing additional samples taken from animals in the area close to where a first case was confirmed last week.

Newcastle is a viral disease that affects domestic and wild birds, causing respiratory problems, among other symptoms, and can lead to death. Brazil on Thursday detected its first case of Newcastle disease in poultry since 2006.

“The negative results are an extremely positive sign regarding the containment of this sanitary event, which is important for a quick resolution of the situation, and reinforces the robustness of Brazil’s agricultural defense system,” the ministry said in a statement on Sunday.

The additional samples were collected on Friday from birds in three properties within the protection zone established in Rio Grande do Sul, where authorities found the first case of the disease in 18 years, when it was detected in subsistence animals.

Last week’s confirmation of the case led the government to enforce a voluntary ban on poultry exports to certain countries.

Brazilian meat lobby ABPA and the state poultry association ASGAV welcomed the results of the additional testing on Sunday, saying they corroborated the single case found last week was “an isolated” event.

Authorities reported the single case on Thursday after the death of around 7,000 birds on a small chicken farm, representing 50% of the flock there.

Brazil voluntarily adopted export restrictions on Friday, affecting sales to 44 nations, including China, Argentina, the European Union, Japan and Saudi Arabia.

“I am confident that with the agility of our teams, we will return to normal export operations very soon,” Agriculture Minister Carlos Favaro said in Sunday’s statement.

(Reporting by Marcela Ayres and Ana Mano in BrasiliaEditing by Matthew Lewis)

A Message to the Ag Industry about H5N1

Fri, 26 Apr 2024 20:49:16 GMT

“We’re going on a bear hunt. We’re going to catch a big one… We’re not scared.”

So goes a beloved children’s book written by Michael Rosen. The story is a metaphor for how to address fear. Kay Russo, DVM, often reads it to her son and daughter, ages 4 and 6.

“This unfortunate family seems to deal with a lot of issues as they’re going on their hike,” Russo says. “Ultimately, every time they reach one of these issues, the book basically says, ‘You know, we can’t go over it. We can’t go around it. We can’t go under it. We have to go through it.’”

That story illustrates how the dairy industry must deal with the growing impact of H5N1, says Russo, Novonesis technical services manager for dairy and poultry. She’s watched the spread of the virus with alarm and urges U.S. leaders across dairy and agriculture to step up and take action.

“Address it head-on,” she says. “Don’t hide.”

As with all major threats, she says ag needs a comprehensive, cohesive plan to address the virus in dairy – and to also look at how to protect the beef, pork and poultry industries.

“At this point, I believe it’s important to take one day at a time and systematically answer the questions that we need to get answered in order to define a sustainable path forward,” Russo says.

“We have a very clear picture that it’s in the udder and is being shed in milk. But where else do we need to be concerned? That matters because that is going to define the control tactics to reduce spreading it from cow to cow. Those questions are ultimately going to be the pillar of our understanding and help to define strategies for controlling the virus in a sustainable way.”

On The Front Line
Help can’t come soon enough for dairy producers and veterinarians in the trenches working with cows.

Veterinarians such as Dr. Barb Petersen in Texas have been dealing with the virus in their clients’ dairy herds since at least March.

“It has been circulating here as early as February, based on retrospective feedback from owners and fellow veterinarians,” says Petersen, owner of Sunrise Veterinary Service in Amarillo.

By early March, she had begun sending daily emails and text messages to her Texas Panhandle dairy clients who needed answers and support.

Petersen, who has been in practice 15 years, did her best to provide both. But she didn’t know what she was dealing with. Neither did any other veterinarian Petersen reached out to within 200 miles of her practice.

“We started to text and email each other, and give summaries of ‘OK, here’s the test that this doctor has run. Here’s what another colleague has run,’” Petersen recalls.

“We tested for every single viral bacterial mycotoxin, lepto, rumensin toxicity, nitrates… I mean, you name it, every single thing that we vaccinate for, we tested for, for sure, right off the bat. And then even some of the things that we don’t or can’t vaccinate for. We tried to cast a really wide net.”

None of the initial tests, conducted by the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL), provided an answer.

Recurring Symptoms Emerge

Some members of the animal health community suspected winter dysentery – an acute, highly contagious gastrointestinal disorder that can affect housed dairy cattle of all ages.

Petersen was skeptical.

“The first clinical symptom I saw was cows that had indigestion. They had manure that wasn’t well-digested, manure with particles of feed in it,” she says.

As she checked more cows and talked with colleagues, more information came to light and she began to identify recurring symptoms: thick, colostrum-like milk; lesions on cow vulvas; high temperatures; respiratory distress; a drop in feed consumption; and a corresponding lack of rumination. None of it added up to winter dysentery.

“This is a really strong and fierce reminder to keep your hands on the cows,” Petersen says. “It’s wonderful to have data, but you have to trust and then verify.”

When Russo at Novonesis got news of the problem from a colleague, she called Petersen.

Russo has worked as a dairy veterinarian and is also a board-certified poultry veterinarian. She and Petersen discussed what kinds of tests had already been done and what health concerns had been ruled out.

“I said, ‘You know, I may sound like a crazy person, a tinfoil-hat-wearing person, but this sounds a bit like (highly pathogenic avian) influenza to me. We’ve seen this particular strain of influenza that’s been circulating, that’s been jumping into mammalian hosts,’ and I kind of left it there,” Russo recalls.

More conversations between Russo, Petersen and other veterinarians ensued. Russo encouraged Petersen to collect some of the dead birds she had encountered at the dairies and submit them to TVMDL for testing, which she did.

On March 19, Petersen received a call from the Texas lab, confirming the wild birds were positive for H5N1.

At about the same time, barn cats at the dairies Petersen worked with were getting sick and starting to die. They had consumed some of the H5N1-infected birds and milk that had not been pasteurized.

“I spent one weekend picking up dead birds and the next weekend picking up dead cats. It was very sad,” Petersen says.

Science Provides Answers
Petersen sent some of the dead cats and a pooled sample of milk to TVMDL pathologists for testing. Because of their heavy workload, she sent the same material to a former veterinary classmate at Iowa State University (ISU), Dr. Drew Magstadt, now a pathologist at the school’s diagnostic laboratory.

“Whenever I’ve gotten into a real jam professionally – like, you have a question that you can’t seem to find an answer to – the group of folks that have always helped me solve it have been pathologists,” Petersen says. “It’s been pathologists that I could give the clues to who helped finish the puzzle.”

On a warm March night in Amarillo, Petersen sat resting on her back porch at home when a text message from Magstadt popped up on her phone.

“There’s something in the results,” he wrote. “Can I call you?”

On the phone, Magstadt shared what he’d found in the lab tests done on the cats and milk: H5N1.

“I was like, ‘Are you serious?’” Petersen asked Magstadt. “Are you going to run those tests again?”

“Yes,” he said. “Just to make sure.”

The initial H5N1 confirmation flabbergasted Magstadt. The next day, he retested the samples to confirm the finding.

“I had thought we would find the results were negative and we would move on to other testing. So I was very, very surprised when the results came back positive,” says Magstadt, ISU clinical associate professor and a pathologist at the Iowa State Veterinary Diagnostic Laboratory.

The National Veterinary Services Laboratory (NVSL) then confirmed Magstadt’s findings. The documentation of H5N1 by NVSL in a sample of milk from a dairy cow represented an industry first.

“The most surprising part of this, in my mind, is the fact that we’re finding so much virus as we are in the milk, in the mammary gland,” Magstadt says.

‘Show Us The Data’
On April 23, the U.S. Food and Drug Administration (FDA) reported it had detected “viral particles of H5N1 avian influenza” in pasteurized milk available for purchase at grocery stores.

Russo is quick to point out this doesn’t mean the actual virus is in milk. Rather, it’s the genetic material known as RNA.

“I think the FDA needs to show us the data,” Russo says. “The fact that there is viral material in some of the milk on shelves, as detected by rt-PCR. That test doesn’t say whether it is alive or dead. Virus isolation is necessary. The first tests have not grown virus, thankfully, but we need more data.”

No unusual human illnesses have been documented. Government health officials say they have seen nothing unusual in flu activity, according to a senior official at the Centers for Disease Control and Prevention (CDC) who was interviewed for this story. The overall assessment and risk to human health remains low from H5N1, the official says.

“CDC looks for a host of flu-like symptoms,” he told “U.S. Farm Report” host Tyne Morgan during a phone interview. “They do so by looking at people coming into emergency rooms, care systems, etc.”

Yet anecdotal evidence suggests the people most likely to be infected – dairy farm workers who have their hands on cows regularly – aren’t necessarily going to doctors for treatment.

The World Health Organization (WHO) website references just one “laboratory-confirmed case of human infection with an influenza A (H5N1) virus on 1 April 2024” on a dairy farm.

“It’s a mild, mild case and the only symptom he had was pinkeye,” Sid Miller, state commissioner of the Texas Department of Agriculture, told “AgriTalk” host Chip Flory at the time, as reported on AgWeb.

That Texas case marked the second confirmed human case of influenza A(H5N1) detected in the U.S. — and the first in the dairy industry. The first documented case, identified in 2022, involved a person in Colorado who worked with infected poultry that tested positive for the virus.

During his interview with Miller, Flory asked whether the virus could impact beef cattle at some point.

“You’ve seen what’s happened in the cattle markets,” Flory said. “They’re looking at it like this is a major problem for beef.”

Problems aren’t anticipated for Texas beef cattle, which consist primarily of feedlot cattle in the Panhandle, Miller replied.

“The cattle that get it are the older lactating cows, and we don’t have those in the feedlot,” Miller explained. “I think we’re OK, but we’re certainly going to research that.”

Tip Of The Iceberg?
So far, H5N1 has been officially confirmed in only 32 herds in eight states, according to data from USDA’s Animal and Plant Health Inspection Service (APHIS).

Some veterinarians working with dairies in Texas believe the virus is more active than current data suggest. Nick Schneider, a consulting dairy practitioner, is one of them.

“The thing is, when you get into the Panhandle of Texas, I’m not sure there’s anybody (dairy farms) that did not have it,” says Schneider.

Texas is home to 335 Grade A dairies with an estimated 625,00 cows, according to information on the Texas Association of Dairymen website. More than 100 of those operations are in the Panhandle.

The virus likely is being under-reported by the dairy industry because the presence of the virus in dairy cows is new, and there are no reporting requirements, Russo says.

“It’s not a foreign animal disease like it’s considered in poultry, where there are reporting requirements,” she explains. “This is considered an emerging disease (in dairy cattle).”

The dairy industry needs to be “very forward looking” now and address the virus, advises Schneider, the Texas dairy consultant.

“Looking at what happened in the rearview mirror is great, but if you’re not looking at where you’re going, it’s really just a pointless endeavor,” he says.

To that end, he advises gaining insights and expertise in preparation for whatever new information emerges next.

“We need to think about this potentially being something we have to live with, as being a part of the industry in the future,” Schneider says. “I hope I’m wrong. I would love to be wrong about that. But it’s something that we definitely need to consider when we’re thinking of how we’re going to manage it.”

Lessons From Swine And Poultry
Russo also advocates learning the lessons from swine and poultry, which have faced a variety of viral challenges for years.

“It’s important that we don’t try to reinvent the wheel as the cattle industry, but sort of cross the aisle to interact with the poultry folks and the swine folks who have gone through this repeatedly over the years and learn from the defined principles they use and try to adapt them into the bovine space,” she says.

Both swine and poultry have modified their animal management practices from the farm to the marketplace as a result of those experiences.

“Poultry, for instance has very distinct biosecurity principles they abide by to include lines of separation,” Russo says. “One is they keep the outside world out. Another is their use of PPE (physical protective equipment) to protect employees and also the birds from anything that might be carried onto the farm.”

The latter is a message Dr. Barb Petersen has taken to heart. Petersen says she was exposed to H5N1 for more than a month before she learned about the virus and its ability to infect dairy cows and people.

“I’m very fortunate that I never got sick,” she says.

Her advice? “Protect yourselves and your people on the dairy. There’s been underreporting of the virus. Understandably, there’s been a lot of fear. But every dairy that I’ve worked with has – with the exception of one – had sick human beings at the same time they had sick cows.”

Based on that knowledge, Petersen has acquired PPE available through Texas Health and Human Services.

“All the states have personal protective equipment available. Go and get it for your dairies,” she encourages other veterinarians. “If a dairy is on the fence, just provide it to them, offer it to everybody.”

Petersen says she has worked with people infected by H5N1 who do not interact with dairy cows. “I’m talking owners and feeders who don’t usually touch cows,” she says.

Research is underway to determine how much of a health risk the virus poses to humans, Russo says.

“This is a rapidly evolving situation, and the people that are working on it are doing everything they can to ensure the safety of those individuals that are most at risk,” she says.

A Paradigm Shift
The virus continues to hit the U.S. poultry industry hard.

Cal-Maine Foods, the largest producer and distributor of fresh shell eggs in the U.S., announced April 2 that chickens at its facility in Parmer County, located in the southwest part of the Texas Panhandle, tested positive for the virus. As a result, Cal-Maine had to cull nearly 2 million chickens − 1.6 million hens and 337,000 pullets.

In the AgriTalk discussion aired earlier this spring, Flory asked Miller, the Texas ag commissioner, whether he believes state agriculture department investigators are in front of the latest issues with HPAI in dairy cattle.

“I think so,” Miller replied. “We’ve got about 10 months before the ducks and geese come back, so I think we’ll have it figured out by then.”

Moving forward, the U.S. livestock industry might operate in a new world – one where the H5N1 virus is endemic.

Russo is undaunted by the challenge.

“This is not insurmountable, but it’s an issue we need to address swiftly,” she says.

Culled dairy cows going into the food supply deserve special attention, she says.

“We need to do the work so that we can define those movement strategies for the practitioners that are being asked to write health certificates on these farms that have the virus circulating,” Russo says.

The dairy industry needs to be more proactive for the sake of the poultry industry, she adds.

“Putting our heads in the sand, and hoping it burns itself out is not going to work. It’s just not,” she says. “It would take down the entire poultry industry by doing that, because this is highly pathogenic to them.”

That is not hyperbole, Russo says: a dime-sized piece of manure with H5N1 can infect up to 1 million chickens or turkeys.

In essence, the livestock industry needs to go on a bear hunt, as the children’s story says.

‘We can’t go over it. We can’t go around it. We can’t go under it. We have to go through it.”

With that as the focus, solutions to H5N1 can be found and help delivered to livestock producers and veterinarians on the front lines and, ultimately, the U.S. agriculture industry can insure a safe food supply.

This story will be updated by Bovine Veterinarian and Farm Journal editorial staff as more information is available.

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Get the Facts Straight on Highly Pathogenic Avian Influenza

Wed, 10 Apr 2024 23:13:09 GMT

Updated as of 4.10.24

Now that the mystery illness impacting dairy herds in multiple states has been revealed as the same strain of influenza virus [Influenza A (H5N1)] that has been impacting the U.S. poultry flock, pork producers are asking a lot of questions. Is this strain transmittable to pigs? Should livestock producers with cattle and pigs be concerned about cross-species transmission?

Those are all important questions, but understanding influenza is the best place to start, says National Pork Board chief veterinarian Dusty Oedekoven.

“Highly Pathogenic Avian Influenza (HPAI) is influenza. HPAI is an official term defined by the severity of the mortality rate in poultry,” he explains.

Within strains of influenza A, the naming convention goes by two proteins on the outer surface of the virus: hemagglutinin (H type) and neuraminidase (N type). Typically, HPAI is of the H5 or H7 types, but there are many other possibilities as there are 18 hemagglutinin types and 11 neuraminidase types, he explains.

“Not all of those occur in poultry, not all of those occur in pigs, and not all of those occur in humans,” Oedekoven clarifies. “But the term highly pathogenic applies to poultry.”

He believes the reason it’s making headlines as HPAI is because it’s the same strain, H5N1, or similar strain that has been found recently in poultry where they have designated it as HPAI.

“Maybe that’s a narrow thing to tease apart,” he points out. “But in my mind, I hope we can separate that a little bit. This is influenza A virus.”

Influenza A viruses affect many warm-blooded animals, including birds and mammals. That’s nothing new, Oedekoven says. Influenza A viruses have been identified in cattle in the past, as well as swine and birds.

“If we think about influenza in domesticated species and humans, we are typically looking at the cycle between humans and pigs,” he says. “Pigs become amplifying hosts of influenza A viruses and the mixing vessel for different types of viruses, as are birds. Birds can get multiple viruses and those viruses mutate within the bird, and new strains evolve. That’s how we have new strains of the virus that emerge and become different strains.”

And that’s why receiving the annual flu vaccine is so important, he adds.

“It’s likely the vaccines we got last year were designed for a different strain than what we’re looking at this year because the virus reassorted and it’s slightly different. Scientists predicting which strain we might be dealing with for the vaccine are right sometimes, and sometimes they miss the mark a little and you may see more influenza in a given year,” he says.

Fact #1: The threat of influenza virus infection in people and pigs is ever present.

Oedekoven says he has not heard of the H5N1 strain being identified in pigs at this time.

“We know pigs are susceptible to influenza A viruses, and swine influe-nza is not uncommon in the U.S. We see outbreaks of routine swine influe-nza fairly frequently,” he says. “We don’t know if there’s any special higher risk of disease or illness or mortality for pigs due to this virus strain than any other swine influenza strain we have.”

The key is diligent observation. If producers see signs of illness in their pigs, Oedekoven urges them to contact their veterinarians.

On the same hand, if they see signs of respiratory illness or flu-like symptoms in people, seek advice from healthcare providers.

Influenza A viruses are common in people, just like they are pigs. Influenza viruses are constantly changing and reassorting.

“The threat of influenza virus infection in people and pigs is ever present. It’s why healthcare providers recommend people get annual influenza vaccines to prevent against new strains of the virus that are emerging all the time,” he says.

This doesn’t represent an elevated threat, Oedekoven adds.

“It’s recognition of a threat we know is there,” he says. “Influenza viruses exist and circulate in people all the time.”

Good sanitation and hygiene are important. If employers have workers who are ill with influenza signs, don’t let them come to work because they could potentially spread that disease to the pigs, which could cause more spread to other humans.

Fact #2: There’s no evidence to support a higher risk of influenza infection from cattle to pigs than exists otherwise.

“We’re not even sure yet to what extent this strain of influenza may be transmitted from cattle,” he says.

USDA reports bovine influenza A virus (originally referred to as HPAI in many reports) in dairy cattle was first identified in samples that included unpasteurized milk from one dairy farm in Texas and two in Kansas, as well as an oropharyngeal swab from another dairy in Texas. The virus was first confirmed in one Texas herd on March 21 by Iowa State University’s diagnostic lab that was helping Texas labs process samples more quickly. Affected farms also reported finding deceased wild birds on their properties.

“Most waterfowl and wild bird species can carry influenza viruses, but usually they don’t die from it. They are good carriers of it and can become infected and produce high levels of the virus and spread it. It’s always a good biosecurity practice to keep birds away from your pigs,” he says.

Remain Vigilant
Megan Niederwerder, executive director of the Swine Health Information Center (SHIC), encourages producers to keep close tabs on biosecurity protocols to reduce risk of pathogen exposure from wildlife.

“As part of the Swine Health Information Center’s Standardized Outbreak Investigation Form, there are several hazards associated with wild birds that can be proactively considered to enhance biosecurity,” Niederwerder explains.

Examples include surface water, wild bird access to inside swine barns, equipment stored outside, compost piles, mortality disposal boxes, open feed bags, open feed bin covers and feed spillage fed to pigs, she says.

“It is important to clean and disinfect tools and equipment with potential exposure to wildlife prior to utilizing inside facilities housing pigs,” Niederwerder says.     

Prompt investigation is key, Oedekoven says. This helps veterinarians and producers handle disease challenges better. USDA notes additional testing is underway, including genome sequencing, to characterize the strain(s) associated with the detections.

Spread the Word

Pork producers play an important role in disseminating truth, Oedekoven says. According to the Centers for Disease Control and Prevention, influenza has not been shown to spread through eating properly handled pork.

“You can’t get influenza from eating or handling pork,” Oedekoven emphasized. “There’s not a risk of acquiring influenza that way. The way that it is transmitted is through aerosolization and direct contact between infected animals, including humans.”

Read More:

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North Carolina Reports First Case of HPAI in Dairy Herd

Wed, 10 Apr 2024 19:59:16 GMT

The National Veterinary Services Laboratory (NVSL) has detected Highly Pathogenic Avian Influenza (HPAI) in a dairy herd in North Carolina.

The North Carolina Commissioner of Agriculture, Steve Troxle, said in a press release he is waiting for more diagnostic information from the NVSL and will work collaboratively with federal partners and dairy farmers in the state.

“We have spent years developing methods to handle HPAI in poultry, but this is new and we are working with our state and federal partners to develop protocols to handle this situation,” he said. “It is important to note the FDA has no concern about the safety or availability of pasteurized milk products nationwide.”

North Carolina is the seventh state to officially confirm the presence of HPAI in a dairy herd.

The other six states with NVSL-confirmed reports of HPAI in dairy are:

Idaho: 1 case
Kansas: 3 cases
Michigan: 2 cases
New Mexico: 4 cases
Ohio: 1 case
Texas: 9 cases

In addition, the National Milk Producers Federation reports that eight states now have dairy cattle importation requirements or restrictions:

The Federation adds that there is “no concern about the safety of the milk supply or that this circumstance poses a risk to consumer health because products are pasteurized before entering the market, per the Food and Drug Administration (FDA). Only milk from heathy animals is authorized for distribution into interstate commerce for human consumption. Additionally, pasteurization has continually proven to inactivate bacteria and viruses, including influenza, in milk.”

More information and HPAI dairy-specific resources are available at the Federation’s website, www.nmpf.org

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AABP Decides to Reference Cattle Disease as Bovine Influenza A Virus (BIAV)

Tue, 09 Apr 2024 20:17:20 GMT

On Sunday evening, the American Association of Bovine Practitioners (AABP), released a letter to its media partners to update them on how the organization will reference the emerging cattle disease, currently confirmed in dairy herds in six states, moving forward.

“Because this infection in cattle is not the same as highly pathogenic avian influenza (HPAI), after thoughtful consideration and discussion with many experts, the AABP will now refer to this as Bovine Influenza A Virus (BIAV), which more accurately depicts it,” wrote Geni Wren, director of marketing and communications for the organization, in an email accompanying the letter.

The letter was developed and signed by AABP executive director, Fred Gingrich, DVM, and president Michael Capel, DVM.

Gingrich and Capel are asking other organizations, state animal health officials, diagnostic labs, and state and federal agencies to use Bovine Influenza A Virus (BIAV) “so we can be consistent with our messaging and better distinguish the disease syndrome in cattle from the pathogenesis in birds. We believe it is important for the public to understand the difference to maintain confidence in the safety and accessibility of beef and dairy products for consumers,” they wrote.

The letter is available in its entirety for review here:

Six Questions One Industry Veterinarian Says She Is Asked Most Often About HPAI

Sun, 07 Apr 2024 20:16:02 GMT

The emerging issue of Highly Pathogenic H5N1 Avian Influenza (HPAI) in the U.S. dairy industry changes on nearly a daily basis.

Novonesis (a merger of Chr. Hansen and Novozymes) hosted a webinar on the issue on Friday to update producers, veterinarians and other members of the agricultural community.

“It’s a rapidly evolving situation,” lead presenter, Kay Russo, DVM, Novonesis technical services manager for dairy and poultry, North America, stressed at the beginning of the program.

“I’m getting a lot of questions, and I’m sure everybody on this call has questions. Or if you’re a veterinarian, you’re receiving them,” she said. “Again, this is a rapidly evolving situation, and what may seem correct today may be different tomorrow.”

Here are the six questions Russo said she is most frequently asked, and what her answers to them are – for now. Russo’s answers have been lightly edited for clarity.

Question #1: Is HNAI spreading from cow to cow?

Answer: Initially the thought was that every one of these animals was exposed to the disease from a bird. But at this point, there is some consideration for the fact that this may be spreading laterally. How it’s spreading is still unclear. There is some postulation that the virus is being spread in the milking parlor. Could it potentially be a mechanical spread from cow to cow on the milkers’ hands, or perhaps (on) the milking machines? Is it possible in these parlors where the humidity is high, it’s a warm environment that we’re seeing some aerosolization of the virus, so I would say that’s possible too. But there’s more work that needs to be done. But for all intents and purposes at this time, I would suspect there is some lateral transmission.

Question #2: Why are calves, younger lactation cows and the feedlot cattle not getting sick?

Answer: Ultimately, I don’t know the answer to this. More work needs to be done. The question needs to be answered. Are they truly not getting infected with a virus? Are they resistant to it, perhaps? Or is it that they are getting infected and just not demonstrating the clinical signs? We milk a lot of these dairy cows three times a day, so there’s a lot of eyes on them. In some of these instances, with the calves or in the feedlot cattle, you’re not handling them as often. We need to rely on the science to answer these questions in order to provide guidelines. I keep saying this, and I will continue to say it, we do not know what we do not measure. And we cannot provide guidelines around what we do not know.

Question #3: Is this a risk to humans?

Answer: The short answer is that it can infect humans. I know that in New Mexico, they are offering free testing to individuals that are working regularly with these infected herds. And if they are symptomatic – we’re seeing conjunctivitis and high fevers in some of them –they are being distributed Tamiflu for their use and for their families. This is a rapidly evolving situation, and the people that are working on it are doing everything they can to ensure the safety of those individuals that are most at risk.

Question #4: Is milk safe?

Answer: The FDA has stated the pasteurization process should kill the virus, and we should not see it in any saleable milk.

Question #5: Will this be a market limiting disease outbreak?

Answer: This is the major concern here, folks. These are important markets for us in this country. At this point, this is something that is absolutely a consideration. The goal here is to keep the farms in business.

Question #6: Are dairy farms a risk to poultry operations?

Answer: We’ve seen two commercial layer operations, one in West Texas and one in Michigan, be positive for highly pathogenic avian influenza this week. I know that there’s considerable amounts of work behind the scenes to determine the origin of the virus that caused the outbreak in those situations. Ultimately, in this circumstance, it’s going to be important that the cattle folks and the poultry folks come to the same table and talk and manage through this. We want to be good neighbors. These are two major industries in our country, so it’s important that the dialogue is there and continues so that we can keep (everyone) safe.

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Texas-Sized Problems Hit the Lone Star State, but Ag Commissioner says ‘Things are Getting Better’

Thu, 04 Apr 2024 21:26:34 GMT

Already this year, farmers and ranchers based in the Texas Panhandle have dealt with some Texas-sized problems that have impacted their livelihoods.

In March, the Smokehouse Creek Fire burned more than a million acres and killed thousands of cattle, primarily in the Panhandle and in Oklahoma.

Cal-Maine Foods, the largest producer and distributor of fresh shell eggs in the U.S., announced on Tuesday that chickens at its facility in the southwest part of the Texas Panhandle, in Parmer County, tested positive for highly pathogenic avian influenza (HPAI). As a result, Cal-Maine had to cull nearly 2 million chickens − 1.6 million hens and 337,000 pullets.

Dairy producers in the Texas Panhandle have also grappled with outbreaks of HPAI in their cow herds in recent weeks. To date, the USDA has confirmed the H5N1 strain of HPAI in dairy cattle on seven Texas farms.

In addition, one dairy worker has contracted an HPAI infection and displayed mild symptoms, the Texas Department of Health and Human Services reported Monday.

“It’s a mild, mild case and the only symptom he had was pinkeye,” Sid Miller, state commissioner of the Texas Department of Agriculture, told AgriTalk Host Chip Flory on Thursday. Miller said it’s unknown how the individual was infected.

You can listen to their conversation here:

What’s Going To Happen Next?
Flory asked Miller whether he believes state agriculture department investigators are in front of the latest issues with HPAI in dairy cattle.

“I think so,” Miller replied. “We’ve got about 10 months before the ducks and geese come back, so I think we’ll have it figured out by then.”

Miller speculated that waterfowl caused the dairy and poultry HPAI infections.

“Cowboy logic would tell you that cattle were drinking from the same ponds where waterfowl were present,” he said. “Or, maybe waterfowl had been in the feed boxes eating grain or something (along those lines). So, we’ve got to take better biosecurity measures to make sure that we eliminate all those possibilities.”

Despite the challenges Texas agriculture has faced the past few months, Miller is cautiously optimistic.

“Things are turning around and getting better. They really are,” he said.

One concern the livestock industry has now is whether HPAI will impact beef cattle at some point.

“You’ve seen what’s happened in the cattle markets,” Flory said. “They’re looking at it like this is a major problem for beef.”

Miller replied that he doesn’t anticipate there will be an HPAI problem in Texas beef cattle, which consist primarily of feedlot cattle in the Panhandle.

“The cattle that get it are the older lactating cows, and we don’t have those in the feedlot,” Miller said. “I think we’re OK, but we’re certainly going to research that.”

Food Safety Precautions
Miller said one of the Texas Department of Agriculture’s primary responsibilities is to make sure food produced in the state is safe for consumers. None of the affected milk, meat or eggs ever reached the marketplace.

“If you want to take some precautions, you might lay off the raw milk and unpasteurized dairy products, because that’s about the only way (HPAI) could get there,” Miller said. “But it’s not in the food chain. It’s not going to create a shortage of milk and dairy products. There’s no shortage of eggs. So, consumers, just rest assured. Don’t be alarmed. This is really not going to affect you.”

In a statement last week, the Centers for Disease Control said it considers the human health risk to the U.S. public from the virus to be low, though people who work with livestock are at higher risk of infection. The agency also advised against eating unpasteurized dairy products, such as raw milk or cheese, from animals with suspected or confirmed cases of HPAI.

More news on HPAI is available here:

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Rare Human Case of Bird Flu Confirmed. Officials Believe it Began on Texas Dairy

Tue, 02 Apr 2024 18:03:41 GMT

Just a week after discovering that Highly Pathogenic Avian Influenza, also known as bird flu, was the cause of illness for several dairy herds throughout the Texas Panhandle, New Mexico and Kansas , the Texas Department of State Health Services (DSHS) is now reporting that a human case of avian influenza A(H5N1) virus has been confirmed in Texas. The case was identified in a person who had direct exposure to dairy cattle presumed to be infected with the disease.

The patient, who experienced eye inflammation as their only symptom, was tested for flu late last week with confirmatory testing performed by the Centers for Disease Control and Prevention over the weekend. Currently, the patient is being treated with the antiviral drug oseltamivir. The DSHS reports that the human case does not change the risk for the general public, which still remains low.

According to the CDC, this is the second human case of H5N1 flu in the U.S. and the first linked to an exposure to cattle. Symptoms can include a fever, cough, sore throat, runny or stuffy nose, headaches, fatigue, eye redness, shortness of breath, diarrhea, nausea, vomiting, or seizures. The illness can range from mild to severe, and health care providers who come across someone who may have the virus should “immediately consult their local health department,” according to the alert.

“The risk to the general public is believed to be low; however, people with close contact with affected animals suspected of having avian influenza A(H5N1) have a higher risk of infection,” the alert said.

While the disease is new to the dairy industry, the U.S. Department of Agriculture says there is no safety concern to the commercial milk supply. Consumer health is also not at risk, the department said. The milk from impacted animals is being dumped or destroyed and will not enter the food supply.

“Milk from impacted animals is being diverted or destroyed so that it does not enter the human food supply,” agencies said. “In addition, pasteurization has continually proven to inactivate bacteria and viruses, like influenza, in milk. FDA’s longstanding position is that unpasteurized, raw milk can harbor dangerous microorganisms that can pose serious health risks to consumers, and FDA is reminding consumers of the risks associated with raw milk consumption in light of the HPAI detections.”

The virus was detected in dairy herds in Texas and Kansas last week and has since spread to additional herds in at least five states, all of which include:

Texas
Kansas
New Mexico
Idaho
Michigan

This leads some scientists to believe that the virus may be spreading cow-to-cow.

Texas officials are guiding affected dairies about how to minimize workers’ exposure and how people who work with affected cattle can monitor for flu-like symptoms and get tested.

In addition, officials are strongly advising dairy producers to use all standard biosecurity measures. They note it’s important for producers to clean and disinfect all livestock watering devices and isolate drinking water where it might be contaminated by waterfowl. Farmers are also being asked to notify their herd veterinarian if they suspect any cattle within their herd are displaying symptoms of this condition.

“Unlike affected poultry, I foresee there will be no need to depopulate dairy herds,” says Texas Agriculture Commissioner Sid Miller. “Cattle are expected to fully recover. The Texas Department of Agriculture is committed to providing unwavering support to our dairy industry.”

For more n HPAI, read:

BREAKING: Mystery Illness Impacting Texas, Kansas Dairy Cattle is Confirmed as Highly Pathogenic Avian Influenza Strain

Thu, 28 Mar 2024 19:23:32 GMT

A mystery illness that’s impacted dairy herds in the Texas Panhandle, New Mexico and Kansas now has a diagnosis : Influenza A. USDA says genetic sequencing revealed it’s the same strain of Highly Pathogenic Avian Influenza (HPAI) that’s been in the U.S. for two years .

APHIS says the “National Veterinary Services Laboratories” detected Influenza “A” in samples from several impacted herds in Texas, Kansas and New Mexico. The virus is carried by wild waterfowl, which experts think is how the illness is spreading. Even with the diagnosis, USDA is still not recommending movement restrictions of animals.

According to the Texas Department of Agriculture, Texas Agriculture Commissioner Sid Miller received confirmation from the United States Secretary of Agriculture, Tom Vilsack, and the Animal and Plant Health Inspection Service (APHIS) that the mystery disease has been identified as a strain of Highly Pathogenic Avian Influenza (HPAI) commonly known as Bird Flu. To date, three dairies in Texas and one in Kansas have tested positive for HPAI.

USDA reports that affected dairy cows do not appear to be transmitting the virus to other cattle within the same herd. APHIS says based on findings from Texas, “the detections appear to have been introduced by wild birds. Initial testing by the National Veterinary Services Laboratories has not found changes to the virus that would make it more transmissible to humans, which would indicate that the current risk to the public remains low.”

APHIS also says federal and state agencies are moving quickly to conduct additional testing for HPAI, as well as viral genome sequencing, to better understand the situation, including characterization of the HPAI strain or strains associated with these detections.

The Texas Department of Agriculture (TDA) also says they are “vigilantly monitoring this outbreak.”

“This presents yet another hurdle for our agriculture sector in the Texas Panhandle,” Miller said in a statement. “Protecting Texas producers and the safety of our food supply chain is my top priority. The Texas Department of Agriculture will use every resource available to maintain the high standards of quality and safety that define Texas agriculture.”

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Officials are strongly advising dairy producers to use all standard biosecurity measures. They note it’s important for producers to clean and disinfect all livestock watering devices and isolate drinking water where it might be contaminated by waterfowl. Farmers are also being asked to notify their herd veterinarian if they suspect any cattle within their herd are displaying symptoms of this condition.

“Unlike affected poultry, I foresee there will be no need to depopulate dairy herds,” Miller added. “Cattle are expected to fully recover. The Texas Department of Agriculture is committed to providing unwavering support to our dairy industry.”

As AgWeb and AgDay first reported last week , dairy farmers in the Texas Panhandle, NewMexico and Kansas were dealing with quite the mystery. Something is causing milk production to nosedive, and veterinarians and state officials can’t pinpoint what it is. In affected cowherds, the issue impacts nearly 10% of the animals, causing reduced feed consumption and a 10% to 20% decline in milk production.

A Texas dairy farmer told Farm Journal the mystery illness acts similar to the flu and impacts only older cows. While the majority of cases are being reported in Texas, the American Association of Bovine Practitioners (AABP), the nation’s largest cattle veterinary association, told Farm Journal last week they have some veterinarian members in New Mexico and Kansas who also reported symptoms.

Milk Still Safe to Drink, Meat Safe to Eat

The dairy industry sent out a join release following the news, reminding consumers milk is still safe to drink.

“Importantly, USDA confirmed that there is no threat to human health and milk and dairy products remain safe to consume. Pasteurization (high heat treatment) kills harmful microbes and pathogens in milk, including the influenza virus,” said the National Milk Producers Federation (NMPF), the International Dairy Foods Association (IDFA), the U.S. Dairy Export Council (USDEC), and Dairy Management Inc. (DMI) in a joint statement.

“Also, routine testing and well-established protocols for U.S. dairy will continue to ensure that only safe milk enters the food supply. In keeping with the federal Grade ‘A’ Pasteurized Milk Ordinance (PMO), milk from sick cows must be collected separately and is not allowed to enter the food supply chain. This means affected dairy cows are segregated, as is normal practice with any animal health concern, and their milk does not enter the food supply. Consumers in the United States and around the world can remain confident in the safety and quality of U.S. dairy,” the statement said.

The National Cattlemen’s Beef Association (NCBA) also released a statement on Monday, saying they are aware that USDA confirmed HPAI in samples collected from dairy cattle in the United States. They say it’s important to note the agency confirmed there is no threat to human health, and milk and meat remains safe to consume.

“At present, HPAI has not been detected in beef cattle. However, producers are encouraged to implement enhanced biosecurity measures on their farms and ranches to help protect their herds,” NCBA said in a statement.

The Meat Institute also reminded consumers that meat is still safe to consume.

“According to the Centers for Disease Control Prevention (CDC) and USDA food safety experts, properly prepared beef is safe to eat,” said Julie Anna Potts, CEO of the Meat Institute. “HPAI cannot be transmitted to humans by eating meat or poultry products.”

The Meat Institute also asked the White House and trade officials to make sure uninterrupted trade remains a priority.

“We call on Biden Administration officials to anticipate international trade concerns and encourage our trading partners to abide by internationally recognized scientific standards as determined by the World Organisation for Animal Health (WOAH),” added Potts.

Symptoms Being Reported

AABP reported to Farm Journal the symptoms veterinarians are experiencing.

“It appears that the disease peaks in about three to four days and lasts 10 to 14 days. Older dairy cattle appear to be more clinically affected, with a more severely affected lactation,” says Dr. Fred Gingrich, cattle veterinarian and executive director of AABP. “And although it’s not consistent with every herd, it appears that it’s mostly affecting animals that are in mid- to late lactation. It’s pretty unusual that we have something going on in older animals, and it’s not in fresh cows.”

Gingrich says AABP understood there was a dire need to find answers for dairy producers.

“We understand right now that the primary impact of this disease is economic. These herds lose about 20% of their milk production for 14 to 21 days, which is a huge economic loss,” Gingrich says. “I think we always like to look for the bright side in a situation, and we don’t appear to have mortalities associated with this disease. That’s not happening, which is really great.”

As the industry works to uncover the factors causing the disease, Gingrich says what makes pinpointing the cause so difficult is trying to decipher what the main symptoms of the illness are versus the secondary symptoms and related issues.

“It’s not a pneumonia outbreak, as far as we can see, and it’s not a mastitis outbreak. I think that some of those things that we’re seeing on farms are probably secondary to the initial agent that’s causing cows to go off feed, and every dairy farmer knows that a cow that doesn’t eat is at risk to get other syndromes and other diseases. I think that’s what’s occurring right now.” he adds.

According to the Texas Animal Health Commission (TAHC), here’s a summary of what the industry knows at this time:

The symptoms of the illness last between 10 and 14 days.
The exact cause of the illness is undiagnosed and still unknown.
Clinical signs include a sudden drop in milk production.
Some severely impacted cows are producing thicker, more concentrated, colostrum-like milk.
The problem causes a drop in feed consumption with a simultaneous drop in rumen function, accompanied by loose feces and some fever.
Impacted herds have reported older cows in mid-lactation may be more likely to be severely impacted than younger cows, fresh cows or heifers.
Dry cows and heifers do not appear to be affected.
Some herds have reported pneumonia and mastitis.

Texas officials say they are working with USDA to further monitor and evaluate reported cases.

“We’re trying to rule out infectious diseases in anything that might be related to feed or water or any kind of supplementation that these animals are receiving,” Dr. Lewis R. “Bud” Dinges, TAHC executive director and Texas state veterinarian, told Farm Journal last week.

Signs to Look For

Gingrich says both dairy producers and veterinarians should be on high alert and stay vigilant with biosecurity measures.

If you’re a dairy producer, Gingrich says these are some signs to look for:

Rapid onset of cows that aren’t eating
Either a drop in rumen activity or more feed in the bunk at the end of the day
A substantial loss in milk production

“These things are key,” says Gingrich. “Don’t just think you might have a bad batch of feed or that you have a respiratory outbreak and just need to vaccinate. If you see any of these issues, immediately call your veterinarian. I think that is important. I think the other thing that is important is, as with any disease, make sure you’re documenting it with good recordkeeping on who’s affected, when they are affected, et cetera. Good recordkeeping on sick cows applies to any disease. So I would encourage you to do that, as well.”

Texas Department of Agriculture says the Texas dairy industry is essential to the state, contributing roughly $50 billion in economic activity across the state. Texas also ranks fourth in milk production nationwide and continues to be a key player in the dairy industry.

A New Toxicant Tool Decreases Feral Hog Populations in Texas

Fri, 01 Sep 2023 12:16:14 GMT

Explosive numbers , deadly destruction , devastating economic impact . Is it possible to control the spiraling feral hog population in Texas?

A new Texas A&M AgriLife Extension Service study shows a warfarin-based toxicant could help slow the out-of-control feral hog numbers by serving as an effective option for landowners and to help minimize damage on their property.

“Texas A&M AgriLife experts are the leading authorities on feral hog control in the nation, and we are the first to test this in a real-world application and to show that this warfarin-based toxicant can be effective for reducing these pests,” explains John Sharp, Chancellor of the Texas A&M University System. “Unabated feral hog populations threaten our natural resources, our livelihoods and our quality of life, and our goal, as a land-grant institution, is to provide safe, effective, science-backed solutions for all Texans.”

The two-year study took place on 23 sites in 10 counties across the various regions of the state. Conducted by Department of Rangeland, Wildlife and Fisheries Management associate professor and AgriLife Extension wildlife specialist John Tomeček, and Michael Bodenchuk, director of Texas Wildlife Services, the teams were able to effectively and efficiently reduce feral hog numbers with diligent application of the product, according to a release .

“Texas A&M AgriLife Extension Service was tasked with evaluating the product’s ability to reduce feral hog numbers and damage in regions across the state and seasons of the year,” Tomeček says. “We found that it can be highly effective when utilized correctly and saw no access to the toxicant by non-target species when all feeder devices functioned properly.”

This study is an important step in the fight to curb the economic and environmental impact of feral hogs in Texas and across the nation, Sharp says. With more than 3 million feral hogs causing more than $500 million in damage to agriculture and private property throughout Texas each year , feral hogs are a burden that also destroy native wildlife and disturb native ecosystems.

Toxicant as a Tool

Researchers conducted field evaluations of a low-dose warfarin-based toxicant to determine its efficacy in various regions of the state and to assess the product’s ability to help landowners prevent property damage and economic harm from feral hogs. AgriLife Extension specialists worked with private landowners on recommended application methodologies to provide real-world testing conditions for the product and the suggested best practices, the release explains.

Bait that included warfarin was placed in specially designed dispensers that prevent access by non-target species, Tomeček says. Feral hogs were conditioned to access the bait before the product was applied. Once the product was applied, feral hogs consumed lethal doses within five days of consistent access to the bait.

Tomeček points out that the product is not considered acutely toxic to non-target animals in the event some might gain limited access to the bait. It’s also not found at lethal levels within the tissue of deceased feral hogs.

The key is to “correctly and consistently” use the warfarin-based toxicant.

After a trial period of close supervision and instruction, landowners in the study applied and managed the bait themselves. During the project, the Texas A&M AgriLife team made several discoveries that will help increase efficacy of the product when applied, the release said.

Landowners who checked the feeder for mechanical issues and replaced bait consistently as part of their regular maintenance schedule reported sharp declines in feral hog numbers and damage levels over the seasons of the year.
Landowners who did not adhere to instruction reported mixed to low success in curbing feral hog numbers on their property. These results were true, regardless of the season of the year or the region of the state where the trial was being conducted.

With threats of African swine fever (ASF) and other foreign animal diseases getting closer to the U.S., wild hog control is becoming an even more critical topic as wild hogs serve as vectors of disease.

Read More About Feral Hogs:

Feral Swine: USDA Monitors World’s Worst Invasive Alien Species

A Sport Utility Vehicle for Disease: Wild Pigs Wreak Havoc in Louisiana

Missouri’s Feral Hog Problem Turns a Corner

Texas Pork Producers Face Uphill Battle with Wild Pigs

Is Aerial Gunning the Answer for Uptick of Wild Hogs?

Is Missouri’s Feral Hog Population on the Decline?

Feral Swine Eradication Program Should Be Permanent, Senators Urge

Destructive, Formidable, Invasive: How is the U.S. Managing the Feral Hog Population?

Feral Swine Test Positive for Pseudorabies at Colorado Farm

If You ‘Doctor’ Livestock, a New Rule Will Determine How or If You Can Buy Antibiotics

Fri, 09 Jun 2023 20:24:27 GMT

A move by the U.S. Food and Drug Administration (FDA) will soon change the status of “medically important” antimicrobial drugs currently available over-the-counter (OTC) to prescription (Rx) use only.

The FDA guidance for industry #263 goes into effect on June 12, 2023.

If you have a valid veterinary-client-patient relationship (VCPR), you will be able to get a prescription from your veterinarian to purchase antimicrobials from them or a distributor and use them, according to the FDA. Antibiotics are one category of antimicrobials.

If you don’t have a relationship with a licensed veterinarian, you won’t be able to purchase such products, many of which have long been available over-the-counter at your local co-op and farm supply store.

What Animals, Which Products?

The guidance applies to all food animals, including cattle, hogs, ruminants (goats/sheep) and poultry. In addition, it also applies to animals not intended for food, such as horses, pet rabbits and backyard chickens.

Products affected by the guidance include injectables such as penicillin, sulfa-based drugs, boluses, intramammary mastitis tubes and some topical products. Common brand names for some of the products include LA-200, Bio-Mycin and Terramycin, among others.

All such products will be available for your use on the farm through purchase from your veterinarian or with a veterinary prescription.

Why The Guidance Is Going Into Effect

Veterinarians are working to get the word out to farmers now to help them prepare and make a smooth transition next summer, says Sandra Stuttgen, a veterinarian and associate professor at the University of Wisconsin Division of Extension.

She says FDA’s ultimate goal is to keep antimicrobials effective for both human and animal health -- termed the One Health Initiative by the World Health Organization -- and prevent resistant bacteria from making such products ineffective.

According to the Centers for Disease Control and Prevention (CDC), in the United States alone, at least 2 million people become infected annually with bacteria that are resistant to antibiotics. At least 23,000 people die each year as a result of these infections. The non-therapeutic use of antimicrobial drugs in animals that enter the food supply contributes to this problem, the CDC says.

The FDA supports judicious use of medically important antimicrobials in all settings. “Labeling changes as a result of GFI #263 are one example of how we can assist farmers and ranchers to strengthen their stewardship efforts when using these drugs,” FDA notes. (Learn more here: GFI #263: Frequently Asked Questions for Farmers and ... - FDA )

Some products will remain available for purchase over-the-counter, according to University of Nebraska’s Becky Funk, DVM, and Jesse Fulton.

They say some antiparasiticides, injectable and oral nutritional supplements, oral pro/prebiotics and topical non-antibiotic treatments will not be affected and will remain available through OTC marketing channels just as before.

Next Steps To Take

If you have an existing relationship with a veterinarian, you’re unlikely to notice much of an impact on your livestock management practices.

If you don’t have a veterinarian start talking with local practitioners and establish a relationship with one now, Stuttgen encourages.

“The veterinarian gets to know you and your (animals), and you can sit down with them to write standard operating procedures and routine drug orders so you can have an inventory on your farm,” she says. “So when Sunday afternoon happens and the (animal) gets sick, you don’t have to call the vet to come out, because you already have the relationship in place.”

Livestock and mRNA Vaccines: What You Need To Know

Tue, 02 May 2023 17:04:52 GMT

As misinformation regarding the use of mRNA vaccines in livestock filter through social media, there are facts begging to be set straight.

Recently, a claim was made saying producers are required to inject livestock with mRNA vaccines.

According to USDA spokesperson, Marissa Perry says, “There is no requirement or mandate that producers vaccinate their livestock for any disease. It is a personal and business decision left up to the producer and will remain that way,” in response to the claim, Associated Press shared in an article .

National Pork Board’s Director of Consumer Public Relations, Jason Menke echoed the statement to AP, noting that the decision to use vaccines and other medical treatments to protect animal health and well-being are made by the farmer under the direction of the herd veterinarian.

To further explain mRNA vaccines and shed light on controversies, Dr. Kevin Folta, a molecular biologist and professor at the University of Florida, shares his viewpoint and experience with the technology.

What are mRNA Vaccines?

First introduced to the population through the COVID-19 vaccines, mRNA (messenger ribonucleic acid) vaccines have been in development for decades, says Folta in a recent AgriTalk segment.

He adds that the technology’s potential in human health makes it a likely candidate to have a place in animal health as well. However, “the technology is being maligned in social media, and is now shaping decisions at the level of state legislature,” Folta says. This leads to the growing importance that producers and consumers become more educated on the topic.

What Folta believes began in January of this year, based on claims with very little data, certain advocates against mRNA vaccines are concerned that mRNA vaccines are in use and development in livestock. Additionally, these vaccines may then be present in the food these animals provide.

Why mRNA Vaccines Are Not Present in Food

“It’s not in your food. It’s a vaccine for the animal that, just like any vaccine, protects the animal from disease,” Folta says.

Current mRNA vaccines being used in swine are injected into the muscle, Folta explains, which causes the development of the immune response protein to then stimulate the body to work against the virus.

“In the absence of the virus, it’s kind of like giving the virus or giving the body a ‘wanted’ poster that says, ‘when this individual comes along, and this virus comes along, work against it,’ and it’s all gone within hours,” he adds.

The mRNA never leaves the cells from where it was injected. RNA is a very unstable molecule that must be kept cold, buffered and in solvent, to remain viable, Folta explains.

Additionally, any licensed vaccine comes with a minimum time before that animal can enter the food chain, also known as the “withdrawal time,” says Alan Young, professor in the Department of Veterinary Biomedical Sciences at South Dakota State University and founder of protein platform (non-mRNA) vaccine company Medgene.

The Animal’s Genes Are Not Altered

While mRNA vaccines include genetic code, Folta says the use of a mRNA vaccines does not alter the animal’s genes in any way.

“This [mRNA] is an intermediate between the gene itself and the products that the gene encodes. So, it’s like having a blueprint and a house. The mRNA is like the construction worker. It takes the blueprint and manufactures the house. In the case of the cell, it takes the DNA blueprint and then takes a little bit of that information to build part of the final structure. The mRNA is just that intermediate, it does not change the genes. It doesn’t change the DNA itself,” he explains.

What are the Benefits of mRNA Vaccines?

More flexibility and faster response to new disease, Folta describes as reasons why mRNA vaccines are becoming more popular.

Traditional vaccines require large amounts of a virus to be raised and purified before being injected to elicit an immune response, he adds. Meanwhile, mRNA encourages the body to make a little piece of protein to elicit the desired immune response.

“It’s much cleaner, much easier. If you’re moving parts in this machine, to make this product that induces an immune response, it’s so good in so many ways,” Folta says.

In pork production specifically, researchers are working with mRNA vaccines that will work this way against porcine reproductive and respiratory syndrome (PRRS), which is a viral disease that causes economic loss totals around $664 million per year in the U.S. (Holtkamp et al., 2013).

Additionally, the use of mRNA technology adds another tool to the toolbox, which may be helpful in combating diseases, such as African swine fever (ASF), avian influenza and other food-animal diseases.
“This stands to be a revolutionary technology if we don’t get in the way,” Folta adds.

Are There Risks to mRNA Vaccines?

Folta says everything has some sort of risk, but it’s important to weigh the benefits against the risk.
As seen with the COVID-19 vaccines, in rare cases, people experienced side effects from the vaccine. However, Folta is encouraged by the initial results in livestock.

“If you look in animals where these [vaccines] have been used, there have been no unusual effects noted. Everything potentially has risk, but it’s monitored, and especially in large animal populations, we can look very carefully at that for surveillance,” he explains.

mRNA Enters State Legislation

While some consumers spread misinformation about the use of mRNA vaccines, the ideas have also crept into state legislation.

The Missouri House Bill 1169 , with a special hearing set for Apr. 19 on the matter, aims to require a label be used on meat from animals treated with an mRNA vaccine, identifying the “potential gene therapy product.”
This bill falsely claims that mRNA vaccines would modify the genes of the organism, Folta explains.

mRNA vaccines are simply another modality that can protect animal health, which results in healthy animals producing the best and safest food products, Folta says, and provides producers with more options to help combat disease.

“To have affordable food, we need to have continual innovation in the animal, medical, veterinary space and mRNA vaccines are safe and an effective way to treat the animal that does not change the final product,” he adds.

The COVID-19 pandemic simply “broke the seal” to the development of these new modalities that will change the way human and animal diseases will be treated in the years to come.

More on Vaccines:

Genvax Technologies Secures $6.5 Million to Advance Novel Vaccine Platform

Cattle Veterinarians Have New Vaccination Guidelines

Don’t Assume That Old Refrigerator Is Good Enough To Store Vaccines

OTC Livestock Antibiotics Will Require Prescription June 11

Why You Need to Pay Attention Now to EPA’s Proposed Rodenticide Mitigation Measures

Mon, 13 Feb 2023 20:42:02 GMT

Out of sight, out of mind. That theory works for a while until it doesn’t, especially when it comes to rodent control.

“Rodenticide use is like using insecticides. If you don’t see any cockroaches, you don’t worry about them. But once you see one, you throw the bomb at it,” says Larry Delozier, director of national poultry account sales for QC Supply.

Similarly, once you see a mouse or rat, it’s likely you have a big problem on your hands , explains Steve Von Haden, Midwest business manager for Motomco.

“Always assume you have rodents, and you should be putting bait out,” Von Haden says. “All agricultural buildings or structures will have rodents of some type. You just don’t want it to get to such high peaks it causes structural damage, diseases and contamination of food sources .”

Pending regulation could mean agriculture loses critically important tools to protect food security. EPA is proposing significant changes to rodenticides that would result in the canceling of products and uses, add more requirements to the labels, and reclassify some products to restricted use pesticides .

“Regardless of whether you are a livestock producer or citrus grower or manager of a golf course, this will have an impact on your ability to effectively manage a destructive farm pest,” says John Walt Boatright, director of government affairs at American Farm Bureau Federation (AFBF). “It’s one more challenge in a regulatory environment where challenges continue to grow for the American producer.”

What is EPA Proposing?

On Nov. 29, 2022, the EPA released for public comment new proposed mitigation measures for 11 rodenticides, which if implemented, will have a major impact on all currently available rodenticide products, the Agricultural Retailers Association (ARA) said on its website . The agency’s proposals are the most significant changes to rodenticides in 15 years that will result in the canceling of products and uses, add more requirements to the labels, and reclassify some products to restricted use pesticides, ARA noted.

EPA’s recommended changes are included in four Proposed Interim Decision documents (PIDs) that cover: 1) the seven anticoagulant rodenticides; 2) bromethalin and cholecalciferol; 3) strychnine; and 4) zinc phosphide.

“EPA’s proposal is quite wide-ranging, and it is going to impact any user of rodenticides and how rodenticides are applied,” Boatright explains. “The challenge is many of EPA’s proposed mitigation measures introduce additional challenges for on-farm application. I don’t know that they will have the intended effect that EPA thinks they’ll have.”

Boatright says this should be very concerning for everyone in the agricultural supply chain who apply rodenticides. Michael Formica, chief legal strategist for the National Pork Producers Council (NPPC), says it will also have a negative impact in urban areas where rodent infestation is a major problem.

“This is an example of one area where rural communities can build positive engagement and cooperate with urban communities. As much as rats and rodents are pests on the farm, they are even more so in an urban area,” Formica says. “In the back alleys in DC, you see rats that look like cats racing from one building to another, running around at night. People don’t want to live with them.”

And they shouldn’t have to, Delozier says. Rodent control companies have made effective, safe bait under EPA’s existing stringent restrictions. EPA’s proposed measures will add great cost and will likely be prohibitive for many.

What Does This Mean for Farmers?

If this proposal is enacted, rodenticide users will see many new restrictions.

“The average livestock farmer wouldn’t be able to use them, you would have to go through certification and training in your state,” Formica explains. “If you’ve got a row crop or grain operation, a lot of folks have that certification because they spray pesticides. But most livestock farmers don’t have all those different certifications.”

Certifications would be required annually, which takes a lot of time, paperwork and training.

“If you don’t have that certification, you would need to hire exterminators to come out. That’s expensive and creates its own biosecurity problem because you’re having people come out not just to apply the rat poison, but also pick up the dead rats,” Formica says.

Pick up dead rats? Yes, that’s part of the new measures, too.

“The proposal talks about mandatory carcass searches in the field. That seems to be quite a challenge to expect a farmer or a farm worker to stop what they’re doing and search for rodent carcasses in potentially hundreds or thousands of acres,” Boatright says.

Once the rodent carcasses are found, farmers would be required to not just log them, but also pick them up and dispose of them.

Another limitation of these measures includes the requirement of single-use base stations, which would create a lot of garbage, Formica adds. The bait stations being used today are refillable.

What Will Happen if Rodent Bait Goes Off the Shelves?

“The more regulation you put on farmers, the more resistance you will have and that’s not conducive to the economic engine that is farming and food in the U.S.,” says Mike Slegl, vice president of product sales for QC Supply.

Farmers aren’t misusing product with the intent of controlling other things, Slegl adds. Some believe EPA is rushing to do this because of pressure from environmentalists for Endangered Species Act concerns.

“There is a potential major negative impact of an additional EPA regulation on the true sustainability of livestock production and the livelihood of farms,” Slegl says. “If it’s one more forced hand that overnight becomes more expensive to something they’re already doing, there’s going to be major resistance and people will push towards non-compliance.”

Delozier fears EPA’s rodenticide mitigation measures will ultimately increase the cost of goods to the consumer.

“Whenever we add requirements, there is always a cost that goes into the food system and will eventually cost the consumer more, too,” Delozier says. “Farmers are already using rodenticides that have to be EPA-approved.”

Darrin Karcher, a poultry specialist and associate professor at Purdue University, says it could be a double-edged sword.

“With the larger integrated companies, if they have to pay someone else to do it, they will pay someone because it has to be taken care of. Where it may catch are those individuals doing it themselves who may not have financial depths to pursue having other people take care of application,” Karcher says. “The question becomes, can they find a way to do that?”

An Increased Biosecurity Risk

And what if they can’t? Rodents present a major biosecurity risk for farms. With devastating diseases like Highly Pathogenic Avian Influenza (HPAI) in the poultry industry and the threat of deadly foreign animal diseases like African swine fever (ASF) in the pork industry, leaders fear how this could impact the health of the nation’s livestock herds.

“The restricted-use pesticide designation concerns me,” says Matthew Galloway, Midwest sales manager for ag rodenticides with Liphatech Inc. “For the broiler and breeder side of the poultry industry, there are hundreds of thousands of barns all over the U.S. One contract grower often has four or five barns and there may be several thousand barns within each company. If farmers don’t get their license, they will have to hire an outside applicator. Then you run into the risk of biosecurity breaches. We can’t have applicators running through multiple farms over a week’s time, otherwise we’ll really see a massive problem.”

It’s also a major problem if rodents get out of control because farms can’t afford the added cost.

“You can put all the filters you want on the ventilation systems in your barns and be as biosecure of a facility as possible, but if rats can get in and out, they will find a way. They aren’t showering,” Formica says.

What Can You Do?

Every 15 years, pesticides are reviewed by EPA. This rodenticide review is part of a pilot project for EPA as they’re implementing their Endangered Species Act work plan. These mitigation measures seek to achieve compliance with their statutory directives at EPA, following recent court cases directing EPA.

“We will see this approach in reviewing other pesticides as well. Folks need to be prepared to provide input,” he says.

This is a proposed interim decision, Boatright explains. EPA will take comments through Feb. 13 and review them. They will then promulgate a final rule at some point in the future.

“Make your voice heard,” Liphatech’s Galloway says. “We’ve got to do everything we can. Submit comments to EPA.”

Both NPPC and AFBF are gathering feedback and information from its members and will be submitting comments to EPA by the Feb. 13 deadline.

“Weigh in and let elected officials know you value these products. The best thing you can do is call your member of Congress. We’re just coming out of three years of COVID, and there are tremendous human health issues of taking rodenticides off the market,” NPPC’s Formica says.

Read more about the rodent problem.

Empty Barns: Several Factors Shrink U.S. Swine Herd and Slow Expansion

Thu, 09 Jun 2022 02:15:44 GMT

Coming off a record year of profitability in the pork production sector, one might expect expansion in the U.S. pork industry. However, a number of headwinds, including diseases like PRRS and PED, are keeping numbers down from 5 to 6 percent over a year ago.

Dave Mensink, a pork producer and former Minnesota Pork Producers Association president from Preston, Minn. says, “A lot of empty barns is what I’m hearing also. A lot of empty barns in the industry because of disease pressure.” He says he has ‘put the brakes’ on expansion. “The hog slaughters are reduced 5 to 6 percent because we’ve had such disease in our industry. One of the biggest challenges that we have is, if we are going to expand, we’ve got to do it in a way that we can have healthy pigs.”

This might be part of the reason several new hog facilities have been built in South Dakota, where pork production has been growing at a rate of 7 to 8 percent each year. “The attraction is primarily the fact that we don’t have the hog concentration some of our surrounding states have and that makes it very conducive to come to South Dakota,” says Glenn Muller, South Dakota Pork Producers Council executive director.

Muller says, so far, they’ve seen less herd health issues over the last several months. “Iowa, Minnesota and Nebraska are seeing more population density of pigs and therefore have more exposure and more risk associated than we do in South Dakota.”

EverAg economist, Dr. Steve Meyer, noted disease isn’t the only issue limiting expansion. “Number two is we’ve had labor problems all over the place, including at the production level. Number three is the cost of building these buildings just went out of sight last year. And then there’s the availability of work just to get a building put up.”

High input and feed costs are also making pork production less attractive. Mensink says, “The feed prices are high and to bring all this back is going to take a few months. It might even take a year before all this production is back in line, and then it’s still a question of what’s our feed prices going to be a year from now?” Fortunately higher hog prices have offset some of the cost, but his margins will still be under 2021, Mensick adds.

Last year, low cost pork producers made a record $20 per head and average producers made $10, Meyer says. However, producers will likely be under that mark this year with the climbing cost of production.

New Partnership Aims to Address Rural Veterinary Shortage

Thu, 21 Apr 2022 18:02:00 GMT

A high debt load can cripple even the most productive of farmers and farming operations.

The same is true for rural veterinarians.

Many leave the business for higher-paying jobs in other industries after only a few years in practice, according to the American Association of Bovine Practitioners (AABP). Likewise, college students eye the expense of veterinary school and decide another career looks like it can offer a better opportunity – and fewer associated costs.

College is an increasingly expensive venture, and an advanced degree is even more so. The American Veterinary Medical Association (AVMA) reports students graduating from veterinary school in 2020 had an average total debt of $188,853 mostly in student loans.

That all adds up to bad news for livestock producers who need access to good healthcare for cattle, hogs, horses and other livestock.

Seeking Solutions

A new partnership between the Farm Journal Foundation in partnership and Zoetis Foundation is working to address the debt problem. The partners want to ease student debt and, in the process, increase the number of rural veterinarians.

“(The goal is to) help ensure access to high-quality veterinary care for livestock in rural areas,” says Jeannette Ferran Astorga, president of the Zoetis Foundation and executive vice president, corporate affairs, communications and sustainability at Zoetis, in a news release.

Getting sound policy in place to help relieve student debt for rural practitioners is a first step toward improving workforce development and the overall viability of the sector, adds Tricia Beal, Chief Executive Officer of Farm Journal Foundation.

Beal says the Veterinary Debt Solutions Program will work with academic experts to research the causes and solutions for current challenges. Coalition leaders will make concrete recommendations that will then be taken to policymakers by a select group of livestock farmers and veterinary professionals, under Farm Journal Foundation’s new Veterinary Ambassadors program.

How Bad Is It?

Debt can be overwhelming, as evidenced by an informal survey conducted during the 2022 AABP Recent Graduates Conference. Approximately 3oo practitioners attended the conference, which is geared to beef and dairy veterinarians who have been out of school less than seven years. When asked if they planned to pay off their student debt, 86% of survey participants said yes, 9% said no and 5% said they weren’t sure.

In addition, the veterinary profession is currently experiencing an urban-rural divide. Only about 10% of final-year veterinary students expressing an interest in working with livestock after graduation, according to survey data from the AVMA.

As a result, about 500 counties across the U.S. now face shortages of veterinarians, according to the U.S. Department of Agriculture – creating challenges for the livestock industry and inhibiting rural economic growth.

More veterinarians are also needed to support government agencies on a range of issues, including inspection and disease control.

“The lack of veterinarians in many rural areas to support the livestock industry poses risks to farming livelihoods and ultimately our food supply,” Beal says. “We are grateful to the Zoetis Foundation for their vision and partnership to address this important issue.”

Avian Flu Pressures Easter Egg Supply and Price

Fri, 01 Apr 2022 18:40:52 GMT

Easter egg supplies could be at risk due to the expanding outbreak of Highly Pathogenic Avian Influenza (HPAI). Analysts with CoBank are saying outbreaks and depopulation within the U.S. layer flock are adding stress to egg supply chains, many of which haven’t fully recovered from the disruptions caused by COVID.

While egg production has stabilized in recent months, it is still well below pre-pandemic levels and egg availability could be limited leading into Easter, according to a new research brief from CoBank’s Knowledge Exchange .

“U.S. egg producers have been hard-pressed to align supplies with market demand over the last two years,” reports Brian Earnest, lead animal protein economist with CoBank. “The U.S. layer flock typically expands ahead of the surge in demand for Easter and contracts during the summer months. But recent losses due to HPAI have combined with high feed costs and other challenges that are severely limiting flock size management.”

Watch this report from AgDay:

The U.S. table egg layer flock itself is shrinking, from a record of more than 340 million head in April 2019 to about 322 million head as the ongoing cage-free transition has complicated operations. The decline in supply stems from extreme shifts in consumer behavior during 2020.

The lack of packaging equipment and supplies needed for grocery sales led to empty store shelves, sky-high retail prices, and ultimately, lower egg consumption. Compounding the pandemic challenges, producers also faced increased input costs of grain, energy and transportation.

The latest blow to U.S. egg supplies is the worst outbreak of HPAI in years. At least 11 million layers have been lost in recent weeks, CoBank reports. With USDA reporting new cases almost daily and depopulation of operations ranging from in the tens of thousands to more than 5.3 million birds,1 estimating the total expected losses is challenging.

While egg production has stabilized in recent months, it is still well below pre-Covid levels. USDA’s recent weekly shell egg demand indicator shows about five days of inventory are currently on hand. This suggests a tight, but not alarmingly tight supply, CoBank reports. However, it does not appear that supplies will be able to accommodate the reduction in layers as a result of HPAI outbreaks, especially at a regional level.

Wholesale prices for cartoned eggs usually range about $0.75 per dozen to $1.50 per dozen. The last time the egg market took flight was during consumer runs on product in the early stages of COVID-19. In March 2020, wholesale values were just over $1 per dozen, and went over $3.00 per dozen in just two weeks.

The bottom line: Expect to pay more for eggs this Easter.

John Dillard: The Potential Time Bomb of African Swine Fever

Tue, 09 Nov 2021 14:00:00 GMT

African swine fever (ASF) is a nasty bug and it’s getting closer to the U.S. The highly contagious viral infection doesn’t infect humans, but it is 100% fatal to hogs.

Countries where the virus has struck have seen their pork industry massively devastated. It is estimated Chinese farmers lost up to half of their hog outputs to the virus in 2018 and 2019. A significant part of the uptick in Chinese grain and soybean meal demand can be attributed to the country’s efforts to rebuild their herds using modern production systems.

In September, USDA’s Animal and Plant Health Inspection Service announced ASF has been found in the Dominican Republic. Given its shared border, it’s assumed ASF has also made its way to Haiti.

Researchers are learning how the virus can be transmitted, but it is believed it can be spread through feral hogs, vehicle and human traffic between farms and feed.

HOPE ON THE HORIZON

There is reason for hope on the horizon. On Sept. 30, USDA’s Agricultural Research Service announced its scientists have developed a vaccine candidate that proved effective at preventing ASF. USDA will be working with a private sector company to make the vaccine commercially available at scale.

It will be a race against the clock to get the vaccine into the U.S. swine herd and, hopefully, we can pull it off. If we can’t, it will be painfully disruptive with effects that extend well beyond hog producers.

As with prior outbreaks, we can expect some export markets to close their markets to U.S. pork if the virus is identified. We can also expect some export markets will seek to limit export sales to pork derived from regions with no ASF infections.

ASF PROTOCOLS

If ASF is detected in a region, the movement of hogs, feed, vehicles and people between operations will likely be limited. Increased biosecurity measures will be instituted. This could include biosecurity- minded routes for trucks hauling grain as well as heat treatment for feed before it is shipped to farms.

Grain and meal exports may be subject to quarantine requirements. This will add extra costs and delays in a time where there is already a shortage of trucks and drivers.

If ASF reaches our shores, USDA and state agencies will need to play a major role in coordinating the response to any ASF outbreak. This should include:

Guidance to hog producers and related industries on how to contain the outbreak.
A workable program to ensure carcasses are disposed of properly and quickly.
An indemnification program to compensate growers for their losses.
A plan to quickly ramp up production and distribution of effective vaccines.

John DIllard No stranger to dirty boots, John Dillard, an attorney with OFW Law, focuses his practice on agricultural and environmental litigation.