Go to completed research year 2024

Standardized total tract digestibility of calcium in limestone from Latin America.
Investigators: Guerrero, D., S. A. Lee, and H. H. Stein.
Publication: In preparation.

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.
Publication: In preparation.

Impact of protein level on sow reproductive performance.
Investigators: Ibagon, J. A., and H. H. Stein.
Publication: J. Anim. Sci. Biotech. Submitted.

Determination of NE and nutrient digestibility in diets containing varying levels of starch.
Investigators: Lee, S. A., and H. H. Stein.
Publication: In preparation.

Effects of source of micro minerals on mineral digestibility in different phases of gestating sows.
Investigators: Lee, S. A., and H. H. Stein.
Publication: In preparation.

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.
Publication: In preparation.

Determination of standardized ileal digestibility of amino acids in diets containing different levels of starch.
Investigators: Lee, S. A., and H. H. Stein.
Publication: In preparation.

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.
Publication: In preparation.

Digestibility of energy by growing pigs and concentrations of digestible and metabolizable energy in diets containing pistachio blanks.
Investigators: Kim, Y., and H. H. Stein.
Publication: J. Anim. Sci. skaf454. doi:10.1093/jas/skaf454.

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.
Publication: In preparation.

Efficacy of a novel direct-fed microbial when included in diets for weanling pigs.
Investigators: Lee, S. A., and H. H. Stein.
Publication: NA.

Release of phosphorus and inositol from soybean meal by growing pigs fed diets with graded levels of microbial phytase.
Investigators: Mallea, A. P., S. A. Lee, and H. H. Stein.
Publication: In preparation.

Effect of pistachio shell powder on growth performance of weanling pigs.
Investigators: Kim, Y., and H. H. Stein.
Publication: Transl. Anim. Sci. 10: Txag002. doi:10.1093/tas/txag002.

Standardized ileal digestibility of amino acids in pistachio blanks and soybean meal fed to growing pigs.
Investigators: Kim, Y., and H. H. Stein.
Publication: J. Anim. Sci. skaf454. doi:10.1093/jas/skaf454.

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.
Publication: In preparation.

Determination of standardized ileal digestibility (SID) and digestible indispensable amino acid score (DIAAS) values of novel and alternative protein sources and protein-rich ingredients.
Investigators: Fanelli, N. S., and H. H. Stein.
Publication: In preparation.

Effects of a fat emulsifier on growth performance of pigs fed diets containing choice white grease or soybean oil.
Investigators: Lee, S. A., and H. H. Stein.
Publication: Animal Sci. Proc. 16:2, p. 384. doi:10.1016/j.anscip.2025.07.166.

Effects of using Jefo Matrix technology on coenzymes (vitamins), cofactors of enzymes (trace minerals), and enzymes for the optimization of nutrition in nursery pigs.
Investigators: Lee, S. A., and H. H. Stein.
Publication: J. Anim. Sci. Submitted (2026 Abstr.).

Evaluation of efficacy of xylanase and beta-glucanase combination on energy digestibility in growing pigs.
Investigators: Acosta, J. P., and H. H. Stein.
Publication: In preparation.

Effects of pistachio blanks on growth performance of weanling pigs.
Investigators: Kim, Y., B. M. Jaramilla, S. A. Lee, and H. H. Stein.
Publication: Anim. Feed Sci. Technol. Submitted.

Standardized ileal digestibility of amino acids in four sources of egg products and casein fed to weanling pigs.
Investigators: Fanelli, N. S., S. A. Lee, and H. H. Stein.
Publication: J. Anim. Sci. Submitted.

Effect of zinc source and supplementation levels on growth performance, post-weaning diarrhea, and intestinal health of weanling pigs.
Investigators: Lee, S. A., and H. H. Stein.
Publication: NA.

Effects of a fat emulsifier on digestible and metabolizable energy of corn-soybean meal based diets fed to growing pigs.
Investigators: Lee, S. A., and H. H. Stein.
Publication: Animal Sci. Proc. 16:2, p. 384. doi:10.1016/j.anscip.2025.07.166.

Amino acid digestibility in a novel protein ingredient from brewers yeast fed to pigs.
Investigators: Ibagon, J. A., and H. H. Stein.
Publication: NA.

Impact of soybean meal on nitrogen balance of pigs.
Investigators: Ibagon, J. A., and H. H. Stein.
Publication: In preparation.

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 growing pigs.
Investigators: Kim, Y., B. M. Jaramilla, S. A. Lee, and H. H. Stein.
Publication: In preparation.

Effects of novel microbial phytases on growth performance and bone ash of young growing pigs.
Investigators: Mallea, A. P., S. A. Lee, and H. H. Stein.
Publication: In preparation.

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. Jaramilla, S. A. Lee, and H. H. Stein.
Publication: In preparation.

Effects of a novel phytase on digestibility of P and Ca in diets fed to young pigs.
Investigators: Mallea, A. P., S. A. Lee, and H. H. Stein.
Publication: In preparation.

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: Not specified.
Publication: In preparation.

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.
Publication: NA.

Growth performance of weanling pigs fed enzyme-treated soybean meal.
Investigators: Torres, L. J., S. A. Lee, and H. H. Stein.
Publication: Submitted to Anim. Feed Sci. Technol.

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

Growth performance of weanling pigs fed diets supplemented with a novel acidifier.
Investigators: Mallea, A. P., S. A. Lee, and H. H. Stein.
Publication: NA.

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.
Publication: NA.