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Farm tests heat detection technology

A project underway on a Saskatchewan farm is testing technology that determines when a cow is in heat.

SenseHub Cow-Calf is new for the beef sector, although the dairy industry has used the technology for a while.

Dr. Sam Wauer, associate director of cattle veterinary services at Merck Animal Health, said an Allflex Sense Hub ear tag placed in a female at least two weeks before she is due to be bred will collect data 24-7.

The tag establishes a baseline from movement and behaviour data points, and a change in that baseline indicates the optimum breeding window. The producer’s phone will receive an alert and the ear tag will flash when that occurs.

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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.