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What’s it like to be a chicken in 2022?

Chickens are a real science subject. I went to school for almost 10 years studying chickens, and one of the last things my dad said to me was, “I can't believe you went to university that long to learn about chickens.” As populations grow while our land base shrinks, agriculture has a major responsibility in feeding the world. I take that very seriously as a researcher — making chicken production more efficient.

Something else many people don't realize is that a lot of our agriculture and animal health students don’t come from a farming background.

I've been working for the last five years trying to help as many students as possible get experience on farms. So far I've placed about 300 students where they go in and get their hands and feet dirty working on farms for three days.

It's not a visit for agrotourism — it's a hard working job. I plan to expand that program and make it so that all of our students can access work-integrated learning programs; opening the doors so they can realize their potential.

Everybody thinks that broiler chickens grow really, really fast, because we administer hormones and force feed them or we take genes out of bison and put them in chickens to make them grow bigger. None of that is true.

Modern commercial chickens grow bigger because of the role of genetics, nutrition and health management. Everybody's working hard to make them better. The genetics work has been amazing — 30 years ago it took 2.1 units of feed to a unit of gain; now it’s about 1.5. It’s like the way that car manufacturers are working to improve gas mileage.

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Trending Video

What Happens When Pigs Adapt to High Soybean Meal Diets? - Gustavo Lima

Video: What Happens When Pigs Adapt to High Soybean Meal Diets? - Gustavo Lima



In this special rerun episode of The Swine Nutrition Blackbelt Podcast, Gustavo Lima, PhD candidate in Animal Science at Iowa State University, discusses how grow-finish pigs respond to high soybean meal diets. He explains the initial drop in feed intake, changes in backfat, later adaptation, energy efficiency, amino acid utilization, and the rise in nitrogen excretion at higher inclusion levels. Listen now on all major platforms!

Click here to read the full research article: https://academic.oup.com/jas/article/...

“Once they got adapted to the diet, they can handle higher levels of inclusion of soybean meal.”

Meet the guest: Gustavo Lima / gustavo-lima-a9867127 is a PhD candidate in Animal Science at Iowa State University whose work focuses on swine nutrition, ingredient characterization, energy metabolism, caloric efficiency, and applied data analysis. With more than 15 years of experience in swine production across Latin America, Gustavo also brings expertise in environmental control, performance evaluation, barn ventilation, and grow-finish housing. Learn more from Gustavo Lima on The Swine Nutrition Blackbelt Podcast, available on all major platforms.