Achievements

Jimena Ibagon for her third-place award in the Graduate Student Oral Competition - PhD II at the ASAS Midwest meeting, Omaha - Nebraska, 2025.

Conferences

Doctor Stein gave some conferences:

• At the Human dietary protein needs and benefits: A critical assessment of postulated propositions. Workshop. Rosemont, IL. February 25-26, about: "Protein needs, lean mass, and body composition: Can human nutrition researchers gain insights from livestock/animal researchers?"
• In Global Dairy Platform. What is next for protein quality in research and policy? GDP Webinar. March 19, 2025. he talked about: "Protein quality of food proteins: Towards improved amino acid nutrition".
• At the College of Agriculture and Food Science, University of the Philippines, Los Banos, The Philippines. Webinar. March 21, 2025. He gave a talk about: "Calcium, Phosphorus, and phytase in diets for growing pigs".

Also our students presented at the at the ASAS Midwest meeting, Omaha - Nebraska, 2025:

• Dr. Su A Lee, Research Scientist from our lab, presented a talk about: “Effects of installing a T-cannula into the distal ileum of growing pigs”.
• Jessica Acosta Ph D student in our lab presented a talk about: “Nitrogen retention not different in pigs fed DL-Methionine or MHA-Ca”. She also presented poster “SDF, IDF, and TDF in feed ingredients used in swine diets”
• Diego Guerrero our newest Ph D student presented a talk about: “Dietary vitamin concentrations and of 25(OH)D3 in diets for growing-finishing pigs”, and Diego also presented a poster about: “Supplementation of 25(OH)D3 in sow diets”
• Yeonwoo Kim, master student in our lab talked about: "Pistachio blanks fed to growing pigs", and he also presented a poster about: "Energy in corn, SBM, and soybean hulls fed to growing pigs and sows"
• Jimena Ibagon Ph D student in our lab gave a talk about: “NE, CH4, and N balance in group-housed pigs”.
• Minoy Cristóbal Ph D student in our lab gave a talk about: "Effects of diet protein concentration on apparent ileal digestibility of starch and standardized ileal digestibility of protein and amino acids in diets fed to growing pigs”.
• Andrea Mallea, Ph D student in our lab gave a talk about: “Growing pigs fed soybean meal or corn fermented protein".
• Bibiana Jaramillo, Ph D student in our lab presented: “Vitamin D3 in growing pigs”.
• Leidy Torres Ph D student in our lab gave a talk about: “Heat treatment on amino acid digestibility in enzyme-treated soybean meal fed to weanling pigs”.

Publications

Peer-reviewed publications:
Ruiz-Arias, N. C.,  S. A. Lee, H. H. Stein. 2025. There are only minor differences among soybeans grown in different areas of the United States in nutrient composition and digestibility of amino acids by growing pigs. Animal Feed Science and Technology 323 (2025) 116297. doi.org/10.1016/j.anifeedsci.2025.116297.