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Estevan Mercury Nelson Motors 4-H Member of the Month

“I like showing the animals,” said Anavay.

This year her heifer Lexi was in the Benson club’s achievement day, and Lexi was named the grand champion heifer and the reserve champion female. 

And she is looking forward to showing a heifer named Aurora and a steer named Aladdin next year.

She has also entered the 4-H sale in Arcola.

While she has enjoyed the cattle show, horses are her first love. When she joined 4-H, she wanted to be part of a horse club. But then she realized she could take the money she makes from the sale of her steer and direct it towards buying a pony, whom she named Sparkles. 

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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.