Peer-reviewed journal articles

Replacement of soybean meal in diets for growing pigs with corn and synthetic amino acids results in reduced energy and nitrogen digestibility and reduced daily nitrogen retention, but metabolizable energy is not changed

Cristobal, Minoy, Su A Lee, Carl M. Parsons, and Hans H. Stein. 2025. Replacement of soybean meal in diets for growing pigs with corn and synthetic amino acids results in reduced energy and nitrogen digestibility and reduced daily nitrogen retention, but metabolizable energy is not changed. Journal of Animal Science, 2025, 103, skaf197.

Keywords:

Amino acids, Energy, low-protein diets, nitrogen retention, Pigs, Soybean meal

Authors:

Cristobal, Lee, Parsons, Stein

Publication Type:

Peer-reviewed journal articles

Read more about Replacement of soybean meal in diets for growing pigs with corn and synthetic amino acids results in reduced energy and nitrogen digestibility and reduced daily nitrogen retention, but metabolizable energy is not changed

The use and application of hybrid rye in diets for weanling, growing, and reproducing swine: A review

Acosta, Jessica P., Hans H. Stein. 2025. The use and application of hybrid rye in diets for weanling, growing, and reproducing swine: A review. Animal Feed Science and Technology 328 (2025) 116442. doi.org/10.1016/j.anifeedsci.2025.116442 Link to full text.

Keywords:

Digestibility, Growth performance, Hybrid rye, Nutrient composition, Pigs, Sows

Authors:

Publication Type:

Peer-reviewed journal articles

Interactive effects of pelleting and particle size reduction of corn on ileal digestibility of starch, acid-hydrolyzed ether extract, and amino acids in corn-soybean meal diets fed to growing pigs

Lee, Su A, Chad B. Paulk, Hans H. Stein. 2025.

Keywords:

Acid-hydrolyzed ether extract, Amino acids, Corn, Particle size, Pelleting, Pigs, Starch

Authors:

Lee, Paulk, Stein

Publication Type:

Peer-reviewed journal articles

Read more about Interactive effects of pelleting and particle size reduction of corn on ileal digestibility of starch, acid-hydrolyzed ether extract, and amino acids in corn-soybean meal diets fed to growing pigs

True metabolizable energy, standardized amino acid digestibility, phosphorus digestibility, and phosphorus bioavailability of fermented soybean meal and fermented full-fat soybeans fed to chickens

M. Cristobal , P.L. Utterback , H.H. Stein, C.M. Parsons. 2025. True metabolizable energy, standardized amino acid digestibility, phosphorus digestibility, and phosphorus bioavailability of fermented soybean meal and fermented full-fat soybeans fed to chickens. Poultry Science 104 (2025) 105386. doi.org/10.1016/j.psj.2025.105386 Link to full text.

Keywords:

Soybean meal, Fermented soybean meal, Metabolizable energy, Amino acid digestibility, Phosphorus

Authors:

Cristobal, Utterback, Stein, Parsons

Publication Type:

Peer-reviewed journal articles

Tolerance of weanling pigs and effects on growth performance of supplementing corn-soybean mealbased diets with graded levels of a novel exogenous β-mannanase

Acosta, Jessica P., Su A Lee, Anna Fickler, and Hans H. Stein. 2025. Tolerance of weanling pigs and effects on growth performance of supplementing corn-soybean mealbased diets with graded levels of a novel exogenous β-mannanase. Translational Animal Science, 9, txaf061. doi.org/10.1093/tas/txaf061 Link to full text.

Keywords:

Growth performance, tolerance, Weanling pigs, β-mannanase

Authors:

Acosta, Lee, Fickler, Stein

Publication Type:

Peer-reviewed journal articles

The soybean oil equivalency of soybean meal indicates a high energy value of soybean meal when fed to growing pigs

Ibagon, Jimena A., Hans H. Stein, and Su A. Lee. 2025. The soybean oil equivalency of soybean meal indicates a high energy value of soybean meal when fed to growing pigs. Can. J. Anim. Sci. 105: 1–7 (2025) | dx.doi.org/10.1139/cjas-2025-0002 Link to full text.

Keywords:

Net energy, Pigs, Soybean meal, Soybean oil

Authors:

Ibagon, Stein, Lee

Publication Type:

Peer-reviewed journal articles

Growth performance and total tract digestibility of nutrients for weanling pigs are improved by an exogenous xylanase and a stimbiotic regardless of maternal xylanase consumption

Acosta, Jessica P., Charmaine D. Espinosa, Gemma González‑Ortiz and Hans H. Stein. 2025.

Keywords:

Digestibility, Growth performance, Sows, stimbiotic, Weanling pigs, Xylanase

Authors:

Acosta, Espinosa, González‑Ortiz, Stein

Publication Type:

Peer-reviewed journal articles

Read more about Growth performance and total tract digestibility of nutrients for weanling pigs are improved by an exogenous xylanase and a stimbiotic regardless of maternal xylanase consumption

Digestibility of energy and nutrients in soybean expellers produced from conventional or high-oil varieties of soybeans and fed to growing pigs

Cristobal, Minoy A. Su A Lee , Andrea P. Mallea, Leidy Torres-Mendoza, Carl M. Parsons, and Hans H. Stein.

Keywords:

Amino acids, Digestibility, Metabolizable energy, Phosphorus, pig, Soybean expellers

Authors:

Cristobal, Lee, Mallea, Torres-Mendoza, Parsons, Stein

Publication Type:

Peer-reviewed journal articles

Read more about Digestibility of energy and nutrients in soybean expellers produced from conventional or high-oil varieties of soybeans and fed to growing pigs

Digestible and metabolizable energy in soybean meal and soybean hulls when fed to growing pigs or sows

Kim, Yeonwoo, Su A Lee, Hans H. Stein. 2025. Digestible and metabolizable energy in soybean meal and soybean hulls when fed to growing pigs or sows. Translational Animal Science, 2025, 9, txaf041 doi.org/10.1093/tas/txaf041 Link to full text.

Keywords:

Digestibility, Energy, Sows, Soybean hulls, Soybean meal

Authors:

Kim, Lee, Stein

Publication Type:

Peer-reviewed journal articles

Repeatability of Pig True Ileal Amino Acid Digestibility Coefficients: Among and Within Laboratories

Hodgkinson, Suzanne M., Natascha Stroebinger, Carlos A. Montoya, Hans Stein, Sonja de Vries, Nikkie van der Wielen, Wouter Hendriks, Paul J. Moughan. 2025.

Keywords:

pig, true ileal AA digestibility, AAs, DIAAS, protein quality

Authors:

Hodgkinson, Stroebinger, Montoya, Stein, de Vries, Wielen, Hendriks, Moughan

Publication Type:

Peer-reviewed journal articles

Read more about Repeatability of Pig True Ileal Amino Acid Digestibility Coefficients: Among and Within Laboratories

The growing area within the United States has only minor impact on digestible and metabolizable energy, and standardized total tract digestibility of phosphorus in full-fat soybeans fed to growing pigs

Ruiz-Arias, N. C., S. A. Lee, H. H. Stein. 2025.

Keywords:

Digestibility, Energy, Full-fat soybean, Phosphorus, pig

Authors:

Ruiz-Arias, Lee, Stein

Publication Type:

Peer-reviewed journal articles

Read more about The growing area within the United States has only minor impact on digestible and metabolizable energy, and standardized total tract digestibility of phosphorus in full-fat soybeans fed to growing pigs

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

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. Link to full text.

Keywords:

Amino acids, Chemical composition, Digestibility, Full-fat soybean, pig

Authors:

Ruiz-Arias, Lee, Stein

Publication Type:

Peer-reviewed journal articles

Digestibility of calcium in calcium carbonate varies among origins, but is increased by microbial phytase regardless of origin

Nelson, Megan E., Su A Lee, Carrie L. Walk, April Zhang, Heng-Xiao Zhai, Hans H. Stein. 2025. Digestibility of calcium in calcium carbonate varies among origins, but is increased by microbial phytase regardless of origin. Animal Feed Science and Technology 320 (2025) 116230. doi.org/10.1016/j.anifeedsci.2025.116230 Link to full text.

Keywords:

Calcium, Calcium carbonate, Digestibility, Limestone, Phytase, pig

Authors:

Nelson, Lee, Walk, Zhang, Zhai, Stein

Publication Type:

Peer-reviewed journal articles

Effects of spray dried plasma on litter growth performance and oxidative stress and inflammation of sows kept in a hot environment

Bailey, Hannah M., Natalia S. Fanelli, Joy M. Campbell and Hans H. Stein. 2025. Effects of spray dried plasma on litter growth performance and oxidative stress and inflammation of sows kept in a hot environment. Journal of Animal Science and Biotechnology (2025) 16:13. doi.org/10.1186/s40104-024-01139-9 Link to full text.

Keywords:

cytokines, Lactation, Sows, Spray Dried Plasma, Weanling pigs

Authors:

Bailey, Fanelli, Campbell, Stein

Publication Type:

Peer-reviewed journal articles

Production region does not influence digestibility of calcium or phosphorus in sunflower co-products fed to growing pigs, but microbial phytase increases digestibility of both calcium and phosphorus

Ibagon, Jimena A., Charmaine D. Espinosa, Hans H. Stein. 2025.

Keywords:

Phosphorus, Phytase, pig, Sunflower meal, Sunflower expellers

Authors:

Ibagon, Espinosa, Stein

Publication Type:

Peer-reviewed journal articles

Read more about Production region does not influence digestibility of calcium or phosphorus in sunflower co-products fed to growing pigs, but microbial phytase increases digestibility of both calcium and phosphorus

True metabolizable energy, standardized amino acid digestibility, and digestibility of phosphorus in soybean expellers produced from conventional or high-oil varieties of soybeans fed to chickens

Cristobal, M., P. L. Utterback, H. H. Stein, C. M. Parsons. 2025. True metabolizable energy, standardized amino acid digestibility, and digestibility of phosphorus in soybean expellers produced from conventional or high-oil varieties of soybeans fed to chickens. Poultry Science 104 (2025) 104726. doi.org/10.1016/j.psj.2024.104726 Link to full text.

Keywords:

Amino Acid, Digestibility, Energy, Phosphorus, Soybean expellers

Authors:

Cristobal, Utterback, Stein, Parsons

Publication Type:

Peer-reviewed journal articles

Read more about True metabolizable energy, standardized amino acid digestibility, and digestibility of phosphorus in soybean expellers produced from conventional or high-oil varieties of soybeans fed to chickens

The digestible indispensable amino acid score (DIAAS) in eggs and egg-containing breakfast meals is greater than in toast breads or hash browns served without eggs

Fanelli, Natalia S., Juliana C. F. R. Martins, and Hans H. Stein. 2024. The digestible indispensable amino acid score (DIAAS) in eggs and egg-containing breakfast meals is greater than in toast breads or hash browns served without eggs. Journal of Nutritional Science (2024), vol. 13, e68, page 1 of 11. doi:10.1017/jns.2024.71. Link to full text.

Keywords:

Amino acids, DIAAS, Digestibility, Eggs, protein quality

Authors:

Fanelli, Martins, Stein

Publication Type:

Peer-reviewed journal articles

Determination of energy values in pistachio shell powder and soybean hulls fed to gestating and lactating sows

Kim, Yeonwoo, Su A. Lee, and Hans H. Stein. 2024. Determination of energy values in pistachio shell powder and soybean hulls fed to gestating and lactating sows. Translational Animal Science, 2024, 8, txae135. doi.org/10.1093/tas/txae135 Link to full text.

Keywords:

Digestibility, Energy, Fiber, pistachio shell powder, Sows, Soybean hulls

Authors:

Kim, Lee, Stein

Publication Type:

Peer-reviewed journal articles

Reduction of particle size of field peas (Pisum sativum L.) increases net energy and digestibility of starch when fed to growing pigs, but there is no difference in nutritional value between peas from the United States and peas from Canada

Ibagon, Jimena A., Su A. Lee, Diego A. Rodriguez, C. Martin Nyachoti, Hans H. Stein. 2024. Reduction of particle size of field peas (Pisum sativum L.) increases net energy and digestibility of starch when fed to growing pigs, but there is no difference in nutritional value between peas from the United States and peas from Canada. J. Anim. Sci.

Keywords:

Amino acids, Energy digestibility, Field peas, Ileal digestibility, Net energy, Particle size

Authors:

Ibagon, Lee, Rodriguez, Nyachoti, Stein

Publication Type:

Peer-reviewed journal articles

Read more about Reduction of particle size of field peas (Pisum sativum L.) increases net energy and digestibility of starch when fed to growing pigs, but there is no difference in nutritional value between peas from the United States and peas from Canada

Standardized total tract digestibility of phosphorus in canola meal fed to gestating or lactating sows without or with a multi-enzyme complex

Velayudhan, Deepak E., Manik M. Hossain, Jinyoung Lee, Hans H. Stein, Charles Martin Nyachoti. 2024. Standardized total tract digestibility of phosphorus in canola meal fed to gestating or lactating sows without or with a multi-enzyme complex. Animal Feed Science and Technology 316 (2024) 116068. doi.org/10.1016/j.anifeedsci.2024.116068.

Keywords:

Canola meal, Digestibility, gestating sows, Lactating sows, Phosphorus

Authors:

Velayudhan, Hossain, Lee, Stein, Nyachoti

Publication Type:

Peer-reviewed journal articles

Read more about Standardized total tract digestibility of phosphorus in canola meal fed to gestating or lactating sows without or with a multi-enzyme complex

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