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Bull Selection Helps Beef Producers Capitalize on Up Markets

April 9, 2012

By Jennifer Stewart, Purdue University

Cow-calf producers can take advantage of high market prices by selecting healthy bulls that will produce calves with more growth potential.

"If we can buy bulls that will produce offspring that will be born with a minimum of dystocia, grow a little bit faster, will produce a little bit higher-quality carcass and produce replacement females that perform above average, I think our cow-calf producers have the opportunity to capitalize," Ron Lemenager Purdue Extension beef specialist said.

Producers can do this by looking at what will affect offspring and doing plenty of research before investing.

"Good bulls come from good cows," Lemenager said. "So if producers can take a look at mom before they purchase that bull, I think it helps minimize some of the risk."

But even if the dam looks good and is healthy, a bull's own merit still needs to be evaluated, starting with reproductive soundness. They should have a breeding soundness evaluation that includes both a physical exam and semen quality evaluation. Many seedstock operations offer a breeding guarantee to the buyer.

Lemenager also said it's important to know the animal's health status.

"Know the background of the bull and the vaccination history," he said. "If you're buying an older bull, be sure the animal doesn't have any venereal diseases that are going to come back into the herd. I really like the idea of buying a virgin bull to minimize the risk."

Structural soundness plays a large role in whether a bull will be able to get cows bred, so Lemenager suggested inspecting feet and leg structure, eyes and muscle shape, a factor that contributes to calving ease.

Genetic merit

Genetic defects have the potential to cause problems in the herd.

"Almost every breed has one or more genetic defect, and they can sneak up on you if you're not careful," Lemenager said. "Producers need to study the pedigrees and know which bulls are free of genetic defects, or buy bulls that have been DNA tested and declared free of known defects."

Producers also need to study up on a bull's expected progeny differences, or EPDs. Calving ease, maternal calving ease, growth traits, maternal milk and carcass traits can all affect a producer's bottom line.

"We really need to keep an eye on the EPDs for the economically important traits," Lemenager said. "We need to stay away from single trait selection and emphasize multi-trait selection to make herd improvement that complements marketing strategy. If you're saving back replacement heifers, things like maternal calving ease and maternal milk become very important. Growth traits such as weaning and yearling weight affect the pounds available for sale. Carcass traits, such as marbling, backfat and the ribeye area are the main drivers for how these cattle hang on the rail.

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