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Do You Measure Up?

October 15, 2009
By: Anna McBrayer, Editor


Do you meet the Gold Standard performance expectations from the Dairy Calf and Heifer Association?

I. Mortality

A. Given that some calves are born with a heartbeat and breathing yet die not long after birth, the age of 24 hours shall be used to distinguish between "dead on arrival” (stillbirth) and "calf mortality.”

B. All newborn calves should be placed in an environment that will be safe from adult animals and adult animal diseases.

C. Every newborn calf should receive care to its naval to control infection.

D. Target mortality rates are:

1. 24 hours to 60 days of age: <5%
2. 61-120 days of age: <2%
3. 121-180 days of age: <1%

II. Morbidity

A. Defining scours as a case of diarrhea which requires any intervention for more than 24 hours, target morbidity rates are:

1. 24 hours to 60 days of age: <25%
2. 61-120 days of age: <2%
3. 121-180 days of age: <1%

B. Defining pneumonia as a case of respiratory disease which requires individual animal treatment with an antibiotic (does not include use of feed-grade medication fed with a regular ration), target morbidity rates are:

1. 24 hours to 60 days of age: <10%
2. 61-120 days of age: <15%
3. 121-180 days of age: <2%

III. Growth Rate

A. Target growth rate standards for Holstein calves are:

1. 24 hours to 60 days of age: Double birth weight
2. 61-120 days of age: 2.2 lb. average daily gain (ADG)
3. 121-180 days of age: 2.0 lb. ADG

IV. Colostrum Management

A. First feeding:

1. Colostrum equaling 10% of body weight should be fed in the first four hours of life. (For example, a 90-lb. calf should receive 4 qt. of colostrum.)

B. Colostrum quality:

1. Colostrum should be free of blood, debris and mastitis
2. Colostrum should be disease-free
3. Test for quality with a colostrum tester or IgG test
4. Target bacteria count (also known as standard plate count) is <100,000 CFU/mL
5. Target immunity level of animals at two to seven days of age is:

a. blood serum total protein of >5.2 g/dL for maternal-source colostrum-fed calves; or
b. serum IgG of >10.0 g/L

V. Nutrition

A. Structure your nutrition program to achieve health and growth standards defined in II and III, and monitor performance regularly. Consult your veterinarian and nutritionist routinely.
B. Clean water and starter grain should be offered to calves with continuous availability by three days of age, and refreshed and replenished daily.

VI. Housing

A. Target housing standards for calves 24 hours to 60 days of age are:
  • Clean
  • Dry
  • Draft-free
  • Good air quality
  • Sized so calf can turn around

B. Target housing standards for calves 61 to 120 days of age are:
  • Clean
  • Dry
  • Draft-free
  • Good air quality
  • Minimum of 34 sq. ft. per animal of resting space
  • Adequate feeding space for all animals to eat at the same time

C. Target housing standards for calves 121 to 180 days of age are:
  • Clean
  • Dry
  • Draft-free
  • Good air quality
  • Minimum of 40 sq. ft. per animal of resting space in bedded-pack housing
  • If animals are in freestall housing, there should be one stall per animal
  • Adequate feeding space for all animals to eat at the same time

See Comments

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