Liu

Effects of supplemental d-methionine in comparison to l-methionine on nitrogen retention, gut morphology, antioxidant status, and mRNA abundance of amino acid transporters in weanling pigs

Espinosa, Charmaine D., John K. Mathai, Laia Blavi, Yanhong Liu, John K. Htoo, J. Caroline Gonzalez-Vega, and Hans H. Stein. 2021. Effects of supplemental d-methionine in comparison to l-methionine on nitrogen retention, gut morphology, antioxidant status, and mRNA abundance of amino acid transporters in weanling pigs. Journal of Animal Science, 2021, Vol. 99, No. 9, 1–10. doi.org/10.1093/jas/skab248.

Keywords: 
Bioavailability, D-methionine, L-methionine, methionine, nitrogen retention, Pigs
Authors: 
Espinosa, Mathai, Blavi, Liu, Htoo, González-Vega, Stein
Publication Type: 
Peer-reviewed journal articles

Effects of a novel E. coli phytase expressed in Pseudomonas fluorescens on growth, bone mineralization, and nutrient digestibility in pigs fed corn–soybean meal diets

Ren, Ping, Laia Blavi, Caroline González-Vega, Yanhong Liu, Deana Hancock, Mercedes Vazquez-Añón, Ferdinando N. Almeida, and Hans H. Stein. 2020. Effects of a novel E. coli phytase expressed in Pseudomonas fluorescens on growth, bone mineralization, and nutrient digestibility in pigs fed corn–soybean meal diets. Transl. Anim. Sci.

Keywords: 
Amino Acid, Bone ash, Growth performance, novel E. coli phytase, Pigs, Phosphorus
Authors: 
Ren, Blavi, González-Vega, Liu, Hancock, Vázquez-Añón, Almeida, Stein
Publication Type: 
Peer-reviewed journal articles

Effects of D‐methionine compared with L-methionine on N retention, gut morphology and antioxidant status of weaned pigs

Htoo, John K., John Mathai, Laia Blavi, Yanhong Liu, Caroline González-Vega, Hans H. Stein. 2020. Effects of D‐methionine compared with L-methionine on N retention, gut morphology and antioxidant status of weaned pigs. J. Anim. Sci. 98(Suppl. 3): 73.  doi.org/10.1093/jas/skaa054.130. (Abstr.). Link to abstract.

Keywords: 
D-methionine, L-methionine, weaned pigs
Authors: 
Htoo, Mathai, Blavi, Liu, González-Vega, Stein
Publication Type: 
Abstracts

Digestible indispensable amino acid score (DIAAS) and protein digestibility corrected amino acid score (PDCAAS) in oat protein concentrate measured in 20- to 30-kilogram pigs

Abelilla, J. J., Liu, Y., and H. H. Stein. 2018. Digestible indispensable amino acid score (DIAAS) and protein digestibility corrected amino acid score (PDCAAS) in oat protein concentrate measured in 20- to 30-kilogram pigs. J. Sci. Food Agric. 98:410–414. Link to abstract

Keywords: 
Digestible indispensable amino acid score, Protein digestibility corrected amino acid score, Oat protein concentrate
Authors: 
Abelilla, Liu, Stein
Publication Type: 
Peer-reviewed journal articles

Effects of graded levels of an Escherichia coli phytase on growth performance, apparent total tract digestibility of phosphorus, and on bone parameters of weanling pigs fed phosphorus-deficient corn-soybean meal based diets

She, Y., Y. Liu, J. C. González-Vega, and H. H. Stein. 2017. Effects of graded levels of an Escherichia coli phytase on growth performance, apparent total tract digestibility of phosphorus, and on bone parameters of weanling pigs fed phosphorus-deficient corn-soybean meal based diets. Anim. Feed Sci. Technol. 232:102-109. Link to abstract

Keywords: 
Phytase, Growth performance, Phosphorus digestibility, Bone ash
Authors: 
She, Liu, González-Vega, Stein
Publication Type: 
Peer-reviewed journal articles

Amino acid digestibility by weanling pigs of processed ingredients originating from soybeans, 00-rapeseeds, or a fermented mixture of plant ingredients

Navarro, D. M. D. L., Y. Liu, T. S. Bruun, and H. H. Stein. 2017. Amino acid digestibility by weanling pigs of processed ingredients originating from soybeans, 00-rapeseeds, or a fermented mixture of plant ingredients. J. Anim. Sci. 95:2658-2669. Link to full text (.pdf)

Keywords: 
Amino acid digestibility, Enzyme-treated soybean meal, Extruded soybean meal, Soy protein concentrate, 00-rapeseed expellers, 00-rapeseed co-product
Authors: 
Navarro, Liu, Bruun, Stein
Publication Type: 
Peer-reviewed journal articles

Effects of graded levels of microbial phytase on apparent total tract digestibility of calcium and phosphorus and standardized total tract digestibility of phosphorus in four sources of canola meal and in soybean meal fed to growing pigs

She, Y., Y. Liu, and H. H. Stein. 2017. Effects of graded levels of microbial phytase on apparent total tract digestibility of calcium and phosphorus and standardized total tract digestibility of phosphorus in four sources of canola meal and in soybean meal fed to growing pigs. J. Anim. Sci. 95:2061-2070. Link to full text (.pdf)

Keywords: 
Phytase, Phosphorus digestibility, Canola meal, Soybean meal
Authors: 
She, Liu, Stein
Publication Type: 
Peer-reviewed journal articles

Productivity of sows fed diets containing canola meal produced from high protein or conventional varieties of canola seeds during gestation and lactation

Canola meal is second only to soybean meal as a protein source used in animal diets. However, the digestibility of amino acids and digestible energy is lower in canola meal than in soybean meal because of the high concentration of fiber in canola meal. The high fiber content and the presence of glucosinolates limit inclusion of canola meal in diets fed to pigs.

Research on using canola meal in pig diets at different stages has indicated that it can be used in gestation diets without limitation and 15 to 20% may be included in lactation diets. However, at least one study indicated that including canola meal in gestating and lactation diets reduced the number of pigs born alive and the number of pigs weaned, and also reduced lactation feed intake and litter weaning weight.

New canola varieties have been developed that yield meal with more protein and less fiber compared with conventional canola meal (CM-CV). The objectives of this research were to determine the effects of feeding diets containing high protein canola meal (CM-HP) or CM-CV to sows during gestation and lactation, and to determine the optimum inclusion rates of CM-HP and CM-CV in gestation and lactation diets.

Keywords: 
High protein canola meal, Canola meal, Gestation, Lactating sows
Authors: 
Liu, Stein
Publication Type: 
Research Reports

Values for digestible indispensable amino acid scores (DIAAS) for some dairy and plant proteins may better describe protein quality than values calculated using the concept for protein digestibility-corrected amino acid scores (PDCAAS)

Mathai, J. K., Y. Liu, and H. H. Stein. 2017. Values for digestible indispensable amino acid scores (DIAAS) for some dairy and plant proteins may better describe protein quality than values calculated using the concept for protein digestibility-corrected amino acid scores (PDCAAS). Brit. J. Nutr. 117:490-499. Link to full text (.pdf)

Keywords: 
Protein digestibility, Digestible indispensable amino acid score
Authors: 
Mathai, Liu, Stein
Publication Type: 
Peer-reviewed journal articles

Effects of ileal digesta collection time on standardized ileal digestibility of amino acids in corn, soybean meal, and distiller’s dried grains with solubles fed to growing pigs

Kim, B. G., Y. Liu, and H. H. Stein. 2017. Effects of ileal digesta collection time on standardized ileal digestibility of amino acids in corn, soybean meal, and distiller’s dried grains with solubles fed to growing pigs. J. Anim. Sci. 95:789-798. Link to full text (.pdf)

Keywords: 
Standardized ileal amino acid digestibility
Authors: 
Kim, Liu, Stein
Publication Type: 
Peer-reviewed journal articles

Effects of diet energy concentration and an exogenous carbohydrase on growth performance of weanling pigs fed diets containing canola meal produced from high protein or conventional canola seeds

Pedersen, T. F., Y. Liu, and H. H. Stein. 2016. Effects of diet energy concentration and an exogenous carbohydrase on growth performance of weanling pigs fed diets containing canola meal produced from high protein or conventional canola seeds. J. Anim. Sci 94:5206-5218. Link to full text (.pdf)

Keywords: 
Canola meal, High protein canola meal, Growth performance, Energy intake, Mannanase
Authors: 
Pedersen, Liu, Stein
Publication Type: 
Peer-reviewed journal articles

Non-antibiotic feed additives in diets for pigs

Liu, Y., D. Espinosa, J. J. Abelilla, G. A. Casas, L. V. Lagos, S. A. Lee, W. B. Kwon, J. K. Mathai, D. M.D. L. Navarro, N. W. Jaworski, and H. H. Stein. 2016. Non-antibiotic feed additives in diets for pigs. Pages 263-281 in Proceedings of the 2016 Chinese Swine Industry Symposium, Shanghai, China, October 20-21, 2016. Link to full text (.pdf)

Keywords: 
Extrusion, Pelleting, Particle size, Sodium hydroxide, Ammonia, Calcium oxide, Calcium hydroxide, Enzymes
Authors: 
Liu, Espinosa, Abelilla, Casas, Lagos, LeeSA, Kwon, Mathai, Navarro, Jaworski, Stein
Publication Type: 
Conference proceedings

Effects of collection time on flow of chromium and dry matter and on basal ileal endogenous losses of amino acids in growing pigs

Kim, B. G., Y. Liu, and H. H. Stein. 2016. Effects of collection time on flow of chromium and dry matter and on basal ileal endogenous losses of amino acids in growing pigs. J. Anim. Sci. 94:4196-4204. Link to full text (.pdf)

Keywords: 
Chromium, Basal endogenous loss
Authors: 
Kim, Liu, Stein
Publication Type: 
Peer-reviewed journal articles

Requirement for digestible calcium by eleven- to twenty-five–kg pigs as determined by growth performance, bone ash concentration, calcium and phosphorus balances, and expression of genes involved in transport of calcium in intestinal and kidney cells

González-Vega, J. C., Y. Liu, J. C. McCann, C. L. Walk, J. J. Loor, and H. H. Stein. 2016. Requirement for digestible calcium by eleven- to twenty-five–kilogram pigs as determined by growth performance, bone ash concentration, calcium and phosphorus balances, and expression of genes involved in transport of calcium in intestinal and kidney cells. J. Anim. Sci. 94:3321-3334. Link to full text (.pdf)

Keywords: 
Calcium requirements, Growth performance, Bone ash, Gene expression
Authors: 
González-Vega, Liu, McCann, Walk, Loor, Stein
Publication Type: 
Peer-reviewed journal articles

Effects of inclusion of canola meal in weanling pig diets containing different concentrations of energy

Pedersen, T. F., Y. Liu, and H. H. Stein. 2016. Effects of inclusion of canola meal in weanling pig diets containing different concentrations of energy. J. Anim. Sci. 94(E-Suppl. 5):459 (Abstr.) Link to abstract (.pdf)

Keywords: 
Canola meal, High protein canola meal
Authors: 
Pedersen, Liu, Stein
Publication Type: 
Abstracts

Xylanase responses on apparent ileal digestibility of nutrients, fiber and energy in growing pigs fed corn, 30% corn co-products and soybean meal based diets as influenced by microbial phytase and acclimatization period

Kiarie, E., Y. Liu, M. C. Walsh, H. H. Stein, and L. Payling. 2016. Xylanase responses on apparent ileal digestibility of nutrients, fiber and energy in growing pigs fed corn, 30% corn co-products and soybean meal based diets as influenced by microbial phytase and acclimatization period. J. Anim. Sci. 94(Suppl. 2):112-113 (Abstr.) Link to abstract (.pdf)

Keywords: 
Xylanase, Protein digestibility, Fiber digestibility, Starch digestibility, Energy digestibility, Corn, Distillers dried grains with solubles, Corn germ meal, Soybean meal
Authors: 
Kiarie, Liu, Walsh, Stein, Payling
Publication Type: 
Abstracts

Effects of a novel phytase on growth performance and metacarpal bone ash in weanling pigs

Liu, Y., J. C. González-Vega, M. Vázquez-Añón, J. Zhao, J. Escobar, F. N. Almeida, and H. H. Stein. 2016. Effects of a novel phytase on growth performance and metacarpal bone ash in weanling pigs. J. Anim. Sci. 94(Suppl. 2):111-112 (Abstr.) Link to abstract (.pdf)

Keywords: 
Phytase, Growth performance, Bone ash
Authors: 
Liu, González-Vega, Vázquez-Añón, Zhao, Escobar, AlmeidaFN, Stein
Publication Type: 
Abstracts

Amino acid digestibility in dairy proteins compared with plant proteins

Mathai, J. K., Y. Liu, and H. H. Stein. 2016. Amino acid digestibility in dairy proteins compared with plant proteins. J. Anim. Sci. 94(Suppl. 2):104 (Abstr.) Link to abstract (.pdf)

Keywords: 
Amino acid digestibility, Whey protein isolate, Whey protein concentrate, Milk protein concentrate, Skim milk powder, Pea protein isolate, Soy protein isolate, Soy flour, Wheat
Authors: 
Mathai, Liu, Stein
Publication Type: 
Abstracts

Effects of particle size of yellow dent corn on physical characteristics of diets and growth performance and carcass characteristics of growing–finishing pigs

Rojas, O. J., Y. Liu, and H. H. Stein. 2016. Effects of particle size of yellow dent corn on physical characteristics of diets and growth performance and carcass characteristics of growing–finishing pigs. J. Anim. Sci. 94:619-628. Link to full text (.pdf)

Keywords: 
Particle size, Corn, Growth performance, Carcass characteristics
Authors: 
Rojas, Liu, Stein
Publication Type: 
Peer-reviewed journal articles

Energy concentration and amino acid digestibility in high protein canola meal, conventional canola meal, and in soybean meal fed to growing pigs

Liu, Y., N. W. Jaworski, O. J. Rojas, and H. H. Stein. 2016. Energy concentration and amino acid digestibility in high protein canola meal, conventional canola meal, and in soybean meal fed to growing pigs. J. Anim. Feed Sci. Technol. 212:52-62. Link to full text (.pdf)

Keywords: 
Digestible energy, Metabolizable energy, Amino acid digestibility, Canola meal, High protein canola meal, Soybean meal
Authors: 
Liu, Jaworski, Rojas, Stein
Publication Type: 
Peer-reviewed journal articles

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