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U.S. Production Of Sweet Potatoes Continues To Grow

U.S. sweet potato production reached a record high 29 million hundredweight (cwt) in 2014, extending production gains that have continued for more than 15 years. Since 1971, North Carolina has been the top sweet potato producer in the United States, and in 2014 it produced 53 percent of all sweet potatoes grown in the country.

North Carolina’s production of sweet potatoes in 2000 was 5.6 million cwt, and by 2014 it had had expanded to 15.8 million cwt. The 185-percent increase in North Carolina’s production has led the growth of the U.S. sweet potato industry, but production has expanded in many other states, including California (where production has doubled since 2000) and Mississippi (where production is up by 155 percent).

Source:usda.gov


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Validating Net Energy in Commercial Swine Systems - Gustavo Lima

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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.