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Living High on the Hog: NC State Strengthens North Carolina Swine

The work day is not over when James Lamb clocks out from his job as an environmental specialist with Prestage Farms. Instead of going home, it’s time to head over to his hog farm in Sampson County.

He checks on the pigs in his two barns, ensuring they have plenty of feed and water, inspects the lagoon, and examines the spray field that fertilizes his five acres of crops. He reviews transportation schedules to see when animals will be coming and going.

These tasks, though, do not feel like work.

“This is my refuge,” he said. “When I’m off the clock and I come down here it’s usually just me and the pigs, my dogs, and nature. The farm is my favorite place to be. It doesn’t feel like work. It’s like when you’re a kid and you can’t wait to get out of school ’cause you’re going to change clothes and go out to play.”

Part of the good feeling comes from knowing he is helping feed the state, the country, and the world.

Feeding Communities and Economies
Pork is North Carolina’s second largest agricultural commodity, with a $10 billion economic impact. 

“It’s a major source of employment and income,” said Kelly Zering, NC State Extension specialist in agricultural and economic resources. “Not just for farmers, but the processing plants, the places that are cooking ham and bacon, packaging products and shipping them. It supports businesses that aren’t necessarily on the farm or in the community. The genetics businesses, the pharmaceutical businesses, engineering, materials and trucking, moving the products out of state.”

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Trending Video

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.