Ongoing research projects in the Stein Monogastric Nutrition Laboratory

August, 2025

Standardized total tract digestibility of calcium in limestone from Latin America.
Investigators: Guerrero D., S. A Lee, and H. H. Stein.
Expected completion: September, 2025.

Effects of xylanase alone or in combination with xylo oligosaccharides on apparent total tract digestibility of energy and dietary fiber when fed to growing pigs. 
Investigators: Acosta, J. P., and H. H. Stein.
Expected completion: September, 2025.

Effects of graded levels of soybean oil on energy balance and net energy of corn-soybean meal diets fed to growing pigs.
Investigators: Lee, S. A., and H. H. Stein.
Expected completion: August, 2025.

Effects of graded levels of soybean oil on apparent ileal digestibility of starch and acid hydrolyzed ether extract and standardized ileal digestibility of amino acids in corn-soybean meal diets fed to growing pigs.
Investigators: Lee, S. A., and H. H. Stein.
Expected completion: August, 2025.

Effects of graded levels of soybean hulls on energy balance and net energy of corn-soybean meal diets fed to growing pigs.
Investigators: Lee, S. A., and H. H. Stein.
Expected completion: August, 2025.

Effects of graded levels of soybean hulls on apparent ileal digestibility of starch and acid hydrolyzed ether extract and standardized ileal digestibility of amino acids in corn-soybean meal diets fed to growing pigs.
Investigators: Lee, S. A., and H. H. Stein.
Expected completion: August, 2025.

Effects of pistachio blanks on growth performance of weanling pigs.
Investigators: Investigators: Kim, Y., B. M. Jaramillo, S. A Lee, and H. H. Stein.
Expected completion: September, 2025.

Impact of the vitamin D metabolite 25 (OH) D3 on requirements for Ca and P in diets for gestating sows.
Investigators: Guerrero D., S. A Lee, and H. H. Stein.
Expected completion: September, 2025.

Net energy of egg products fed to weanling pigs.
Investigators: Fanelli, N. S, S. A Lee, and H. H. Stein.
Expected completion: April, 2026.

Impact of soybean meal on nitrogen balance of pigs.
Investigators: Ibagon, J. A., and H. H. Stein.
Expected completion: August, 2025.

Digestibility of energy and concentrations of digestible and metabolizable energy in high-protein canola meal, conventional canola meal, and soybean meal in diets fed to gestating sows.
Investigators: Kim, Y., B. M. Jaramillo, S. A Lee, and H. H. Stein.
Expected completion: September, 2025.

Use of soybean meal to mitigate the negative effects of heat stress in growing pigs.
Investigators: Lee, S. A., and H. H. Stein.
Expected completion: December, 2025.

Digestibility of energy and concentrations of digestible and metabolizable energy in high-protein canola meal, conventional canola meal, and soybean meal in diets fed to lactating sows.
Investigators: Kim, Y., B. M. Jaramillo, S. A Lee, and H. H. Stein.
Expected completion: September, 2025.

Effects of a Leucine-degrading enzyme on ileal digestibility of amino acids and growth performance of weanling pigs.
Investigators: Acosta, J. P., and H. H. Stein.
Expected completion: September, 2025.

Growth performance of weanling pigs fed enzyme treated soybean meal.
Investigators: Torres, L. J., S. A Lee, and H. H. Stein.
Expected completion: July, 2025.

Effects of 25-OH-D3 and dietary Ca and P on lactation performance, digestibility of Ca, P, and energy, milk composition, bone turnover biomarkers, blood vitamin D levels, and bone ash of piglets from lactating sows.
Investigators: Guerrero D., S. A Lee, and H. H. Stein.
Expected completion: December, 2025.

Effect of protease supplementation on standardized ileal digestibility of amino acids in low or high-trypsin inhibitors soybean meal fed to weanling pigs.
Investigators: Mallea, A. P., S. A Lee, and H. H. Stein.
Expected completion: December, 2025.

Nitrogen balance in pigs fed diets based on conventional soybean meal or enzyme treated soybean meal.
Investigators: Torres, L. J., S. A Lee, and H. H. Stein.
Expected completion: October, 2025.

Effects of graded levels of microbial phytase on growth performance of growing pigs.
Investigators: Acosta, J. P., and H. H. Stein.
Expected completion: April, 2026.