Ruling Threatens Progress Made in Clean Water Efforts

Aug 31, 2021

American Farm Bureau Federation President Zippy Duvall commented today on the District of Arizona court ruling to vacate the Navigable Waters Protection Rule.

“AFBF is extremely disappointed in the ruling to vacate the Navigable Waters Protection Rule. Farmers finally had environmentally responsible regulations that brought clarity to clean water efforts. This ruling casts uncertainty over farmers and ranchers across the country and threatens the progress they’ve made to responsibly manage water and natural resources.

“Three courts have previously refused to dismantle the NWPR, including last month when a federal court in South Carolina refused a similar request from plaintiff groups. Unfortunately, this Arizona court simply accepted the plaintiffs’ assertions as true and did something that no other court has done in vacating the NWPR.

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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.