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Genes Behind the Scenes

The cattle you raise and the beef they produce are the result of two factors – their genetic potential, and the environment they’re raised in (climate, feed, health management, handling practices and everything else you do).

The beef industry adopts genetics more slowly than poultry, swine or dairy. Several things make genetic advancement trickier in beef cattle.

Comparing beef to other industries is like comparing apples to oak trees – our production systems are very different. Pigs, poultry and dairy cows are usually raised in intensive confinement systems that tightly control the physical environment and diet. This means production practices (and productivity) can be reasonably similar across the entire country. When a barn largely eliminates the environmental factors, even the most demanding genetics can be accommodated. In contrast, cow-calf production takes place in the natural environment. Beef cows need all the genetic flexibility they can get to cope with blizzards, drought, bogs, hills, parasites, predators, highly variable feed quality and availability, and everything else nature throws at them. Genetics that can’t cope with those conditions tend to drop out in these situations. The feedlot sector is more intensive and could likely get more out of those genetics.

Our marketing systems are also like apples and tumbleweeds. With pigs, poultry and dairy, the producer who decides (or is instructed) what genetics to use also sells the eggs, milk or slaughter-ready bird or pig. Their customer provides a clear economic incentive for product quality. Cow-calf producers who don’t retain ownership are paid for weaning weight, and are incentivized to maintain fertility and longevity. Focusing too much on better feedlot performance, feed efficiency or carcass merit genetics could lead to a tradeoff in fertility or longevity. Feedlot producers would undoubtedly love to see higher efficiency, growth and carcass quality genetics. But they rarely produce their own calves and only buy a fraction of their calves directly from the farm. So, the feedlot sector works the “environment” side of the equation by sorting weaned calves into finishing, backgrounding, or grass yearling systems based on sex, weight and breed-type, and tailor their diet and management to get the most out of the genetics they think they bought.

But the genetic quality of Canada’s beef cattle is improving behind the scenes. Most cow-calf buyers may not be deliberately seeking improved genetics for growth or carcass quality. But if they’re buying yearling bulls from breeders who are selecting for those traits, then those improved genetics are feeding into the whole system.

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Trending Video

Assessing Welfare Resources During Late Finish - Dr. Anna Johnson & Emma Coursey

Video: Assessing Welfare Resources During Late Finish - Dr. Anna Johnson & Emma Coursey


In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Anna Johnson from Iowa State University and Emma Coursey from the University of Illinois discuss research evaluating welfare resources during the late finishing stage on commercial swine farms. They explain how feeder management, water use, space allocation, and pig health influence welfare outcomes and practical on-farm management. Listen now on all major platforms!

"Small resource issues can become larger welfare problems when multiple stressors interact across finishing barns."

Meet the guests: Dr. Anna Johnson / anna-johnson-05028a14 is the Morrill Professor of Animal Behavior and Welfare at Iowa State University. She earned her Ph.D. in Animal Sciences from Texas Tech University and completed her master's degree in Applied Animal Behaviour and Welfare at the University of Edinburgh. Her research focuses on practical solutions that improve farm animal welfare, including sow productive lifetime, animal-human interaction, environmental enrichment, and Precision Livestock Farming.

Emma Coursey / emma-coursey-183810241 is pursuing a Doctor of Veterinary Medicine degree at the University of Illinois College of Veterinary Medicine after earning a bachelor's degree in Animal Science from Iowa State University. Her academic interests include swine health, production, and animal welfare, with research experience evaluating welfare resources in commercial finishing pigs.