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This is What Showing Livestock is All About

Stock show kids are cut from a different mold. Driven by a purpose greater than themselves, they know it's up to them to help their animals thrive. I don’t know why this changes something in them, but it seems to equip them with an internal drive to push harder and work longer than others. In the end, they walk with a greater confidence and perspective. 

I think that’s why I love writing about young people who show livestock. Although their stories are different, common themes emerge.

  • A desire to help other people. 
  • A willingness to ask questions and seek to improve. 
  • A relentless pursuit of their dreams. 
  • A commitment to work harder than expected.
  • A belief in passing on what they’ve learned to others.
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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.