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APHIS Confirms New World Screwworm Case In Texas

The Animal and Plant Health Inspection Service (APHIS) has confirmed a case of New World screwworm (NWS) on a cattle operation near La Pryor, TX, about 50 miles from the Mexico border. Samples were taken from a 3-week-old calf with larvae present in an umbilical lesion and sent to the National Veterinary Services Laboratories in Ames, IA, for confirmatory testing. Currently, there are no other cases. 

The infected operation has been quarantined and a 20 km/12.4 mi. infested zone has been established around the location for movement control and surveillance.

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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.