Projects

Our graduate students are consistently working on furthering the swine industry. Featured are some of their recent works and presentations.

Characterizing Dietary Fiber in U.S. Feedstuffs to Harness Its Full Potential in Swine Diets

Click here to discover how our collaborative research is unlocking the untapped potential of dietary fiber in swine feed. By examining the impact of various fiber sources on sow health, productivity, and longevity, we’re refining nutrition strategies to enhance retention, decrease mortality, and promote healthier litters. Learn how advanced fiber analysis is driving new solutions for modern swine production.
By David Rosero, Samuel Leiva, Gustavo Lima, and Amy Petry

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2025 National Hog Farmers: Characterizing U.S. Soybean Meal And Hulls Fiber Content, Functional Attributes

Click here to view a recent study by Iowa State University and the University of Missouri, published in National Hog Farmer, which provides valuable insights into the fiber content and functional attributes of U.S. soybean meal (SBM) and soy hulls (SH). The research highlights the importance of using Total Dietary Fiber (TDF) analysis over Neutral Detergent Fiber (NDF) for more accurate and consistent fiber measurement. Presentation by Gustavo Lima and David Rosero, Iowa State, ft. Amy Petry, University of Missouri

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2025 3rd Annual Interdisciplinary Biological Sciences Symposium: Deep Learning for Pig Detection: A Step Toward Early Identification of Fall-behind Weaned Pigs

Click here to see full presentation slides "Deep Learning for Pig Detection: A Step Toward Early Identification of Fall-behind Weaned Pigs," by Bimala Acharya.

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2025 ASAS Midwest Meeting: Managing Amino Acid Variation

"Viable options to deal with variability in protein and amino acid sources, and pigs of varying status and sources" by David Rosero and John Patience

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2025 ASAS Midwest Meeting: Impact of Including Sucrose and Lactose in Initial Nursery Diets On The Performance of Nursery Pigs and their Feed Preference

"Impact of including sucrose and lactose in initial nursery diets on the performance of nursery pigs and their feed preference" by Nathan VanderWerff from Iowa State University.

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2025 ASAS Midwest Meeting: Abstract #7 Improving Sow Longevity by Slowing Growth During Gilt Development Through Nutritional Interventions

Samuel Leiva presented at the 2025 ASAS Midwest Meeting. Click to view his presentation on "Improving Sow Longevity by Slowing Growth During Gilt Development Through Nutritional Interventions."

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2025 ASAS Midwest Meeting: Abstract #94 Determining the Maximum Inclusion Rate of Soybean Meal in Grow-to-Finish Pig Diets

Click here to view more about Gustavo's presentation about "Determining the Maximum Inclusion Rate of Soybean Meal in Grow-to-Finish Pig Diets."

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2025 ASAS Midwest Meeting: Abstract #178 Assessing Variability in Nutrient Composition and Hydration Properties of Soybean Meal Sources through Dimension Reduction

Click here to view Gustavo's presentation about "Assessing Variability in Nutrient Composition and Hydration Properties of Soybean Meal Sources through Dimension Reduction."

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2025 ASAS Midwest Meeting: Abstract #223 Dimensionality Reduction-Based Analysis Identifies Key Drivers of Nutrients and Physicochemical Variability in U.S. Soybean Hull Sources

See Gustavo Lima's presentation about "Dimensionality reduction-based analysis identifies key drivers of nutrients and physicochemical variability in U.S. soybean hull sources."

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2024 Zinpro: Key Points to Optimize the Growth Performance

Check out Gustavo's slide set from his presentation at Zinpro 2024.

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