Farms.com Home   News

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.

Click here to see more...

Trending Video

Inside the Battle Against Streptococcus suis - Dr. Mariela Segura

Video: Inside the Battle Against Streptococcus suis - Dr. Mariela Segura

In this special rerun episode of The Swine it Podcast Show Canada, Dr. Mariela Segura from the University of Montreal explains the current challenges and future perspectives of Streptococcus suis vaccines. She discusses the impact of the pathogen on pig health, antibiotic resistance, zoonotic risks, and the latest vaccine innovations. Gain insights into how the swine industry can improve disease control. Listen now on all major platforms! "Streptococcus suis is not only a major economic concern in the swine industry but also a zoonotic pathogen." Meet the guest: Dr. Mariela Segura / mariela-segura-442a8425a is a full professor at the Faculty of Veterinary Medicine at the University of Montreal and the director of the Swine and Poultry Infectious Diseases Center (CRIPA). She earned her master's and Ph.D. from the Université de Montréal.