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Livestock producers encouraged to test water supply

For livestock producers having access to a good, clean water supply is key.

Water quality can affect the feed intake, the absorption of nutrients, and overall productivity of animals.

Livestock and Feed Extension specialist Alicia Sopatyk  encourages producers to get their water tested, adding one of the most common problems tends to be high sulfates.

"There are lots of parameters to be testing for that can cause problems, but the high sulfates can cause a toxicity scenario themselves depending on the level. You can get extreme toxicity causing blindness, polio and death on that subclinical level, secondary copper deficiency and things like that all affect our productivity and our bottom line."

Stats show that in the last three years about half of all provincial water samples tested had sulphate levels that were totally safe. 

However, about 40 percent of the samples fell into the cautionary category, and just under 10 percent were considered unsuitable. 

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In this episode of The Swine Nutrition Blackbelt Podcast, Gustavo Lima, PhD candidate at Iowa State University, explains how soybean meal net energy is evaluated using growth assays and calorimetry. He discusses caloric efficiency, validation under commercial conditions, and differences between controlled and real-world environments. Gustavo also highlights practical implications for diet formulation and ingredient valuation. Listen now on all major platforms!

“Indirect calorimetry provides a precise estimation of ingredient energy, yet validation under production conditions remains essential for accurate application in real systems.”

Meet the guest: Gustavo Lima / gustavo-lima-a9867127 is a PhD candidate in Animal Science at Iowa State University, specializing in swine nutrition, ingredient evaluation, and energy metabolism. With over 15 years of experience across Latin America, his work focuses on soybean meal utilization, caloric efficiency, and applied research for commercial production systems.