Genetics Can Boost Swine Herd Health

Jun 13, 2022

Herd health is a constant worry for pork producers, especially with increasing restrictions on the use of antibiotics and other preventative treatments. Recent improvements in biosecurity practices can help, of course, but breeding for disease resilience offers a vital, complementary approach.

“Genetic improvement can be an important component in a comprehensive strategy to combat the impacts of disease,” says Jack C. M. Dekkers, Ph.D., a C.F. Curtiss Distinguished Professor in the Department of Animal Science at Iowa State University. “How pigs respond to disease has a substantial genetic component and can, thus, be selected for. While resistance to some diseases is determined by a single gene, resistance to most diseases is controlled by many genes and is not complete.”

Measuring Resilience

In his upcoming talk at United Pork Americas in Orlando, Fla. (Sept. 7-9, 2022), Dekkers will discuss how and why genetics can play a critical role in lessening the impact of disease on pork production. “An understanding of the genetic basis of resistance and resilience of disease will help producers determine the best sources of genetics for their operations,” Dekkers says.

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Video: Sweetener Effects on Gut Health - Dr. Kwangwook Kim

In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Kwangwook Kim, Assistant Professor at Michigan State University, discusses the use of non-nutritive sweeteners in nursery pig diets. He explains how sucralose and neotame influence feed intake, gut health, metabolism, and the frequency of diarrhea compared to antibiotics. The conversation highlights mechanisms beyond palatability, including hormone signaling and nutrient transport. Listen now on all major platforms!

“Receptors responsible for sweet taste are present not only in the mouth but also along the intestinal tract.”

Meet the guest: Dr. Kwangwook Kim / kwangwook-kim is an Assistant Professor at Michigan State University, specializing in swine nutrition and feed additives under disease challenge models. He earned his M.S. and Ph.D. in Animal Sciences from the University of California, Davis, where he focused on intestinal health and metabolic responses in pigs. His research evaluates alternatives to antibiotics, targeting gut health and performance in nursery pigs.