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Canada expanding surveillance, increasing testing for avian flu

OTTAWA - The Canadian government is expanding its surveillance program for a form of avian flu amid a growing outbreak in U.S. dairy cattle.

Fragments of highly pathogenic avian influenza have been detected in pasteurized milk sold in the U.S. and a statement from Canada's health agencies says lactating dairy cattle being imported from the United States will now require negative tests.

The statement says officials will be conducting enhanced testing of milk at the retail level to look for viral fragments.

It says voluntary testing will also be available for cows that are not presenting with clinical signs of HPAI, as part of "enhanced industry biosecurity efforts."

The U.S. Food and Drug Administration said last week about 20 per cent of milk samples from across the country tested positive for fragments of avian flu.

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Validating Net Energy in Commercial Swine Systems - Gustavo Lima

Video: Validating Net Energy in Commercial Swine Systems - Gustavo Lima


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.