Stein

Effects of pelleting, extrusion, or extrusion and pelleting on energy and nutrient digestibility in diets containing different levels of fiber and fed to growing pigs

Rojas, O. J., E. Vinyeta, and H. H. Stein. 2016. Effects of pelleting, extrusion, or extrusion and pelleting on energy and nutrient digestibility in diets containing different levels of fiber and fed to growing pigs. J. Anim. Sci. 94:1951-1960. Link to full text (.pdf)

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Effects of microbial xylanase on digestibility of dry matter, organic matter, neutral detergent fiber, and energy and the concentrations of digestible and metabolizable energy in rice coproducts fed to weanling pigs

Casas, G. A. and H. H. Stein. 2016. Effects of microbial xylanase on digestibility of dry matter, organic matter, neutral detergent fiber, and energy and the concentrations of digestible and metabolizable energy in rice coproducts fed to weanling pigs. J. Anim. Sci. 94:1933-1939. Link to full text (.pdf)

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Amino acid digestibility in soy protein concentrate with different particle sizes fed to weanling pigs

Soy protein concentrate is produced by aqueous ethanol extraction of water-soluble carbohydrates from soybean meal, followed by heat treatment. The ethanol extraction process removes soluble carbohydrates, leaving a product that contains at least 65% crude protein. Because soy protein concentrate contains reduced levels of oligosaccharides, trypsin inhibitors, and lectins compared with conventional soybean meal, it can be used in diets for weanling pigs.

Reducing the particle size of soybean meal can increase amino acid digestibility due to the increased surface area for enzymes to work on. However, there are no known data on the effect of particle size on amino acid digestibility in soy protein concentrate. Therefore, an experiment was conducted to determine the digestibility of crude protein and amino acids in soy protein concentrate ground to three different particle sizes and to compare these values to values for soybean meal and fish meal when fed to weanling pigs.

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Effects of full fat or defatted rice bran on growth performance of weanling pigs

Rice bran is the brown outer layer of brown rice, which is removed from brown rice to produce white polished rice for human consumption. Rice bran may be full fat, containing 14 to 25% fat, or defatted, which reduces the concentration of fat to less than 5%.

Rice bran has a high concentration of non-starch polysaccharides (NSP), primarily arabinoxylan and cellulose. NSPs decrease nutrient digestibility and thus limit the inclusion of rice bran in weanling pig diets. Recent data from our laboratory indicate that adding exogenous xylanase to diets containing full fat rice bran (FFRB) or defatted rice bran (DFRB) increases the concentrations of digestible and metabolizable energy. The objective of this experiment was to determine the effects of increased inclusion levels of FFRB or DFRB to diets without or with exogenous xylanase on growth performance.

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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)

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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)

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The effect of microbial phytase on the apparent and standardized total tract digestibility of calcium in feed ingredients of animal origin

Merriman, L. A., C. L. Walk, and H. H. Stein. 2016. The effect of microbial phytase on the apparent and standardized total tract digestibility of calcium in feed ingredients of animal origin. J. Anim. Sci. 94(Suppl. 2):110 (Abstr.) Link to abstract (.pdf)

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Effects of exogenous xylanase on digestibility of dry matter, organic matter, neutral detergent fiber, and energy and the concentrations of digestible and metabolizable energy in rice co-products fed to weanling pigs

Casas, G. A. and H. H. Stein. 2016. Effects of exogenous xylanase on digestibility of dry matter, organic matter, neutral detergent fiber, and energy and the concentrations of digestible and metabolizable energy in rice co-products fed to weanling pigs. J. Anim. Sci. 94(Suppl. 2):107 (Abstr.) Link to abstract (.pdf)

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Amino acid digestibility in six sources of meat and bone meal fed to growing pigs

Navarro, D. M. D. L., N. W. Jaworski, and H. H. Stein. 2016. Amino acid digestibility in six sources of meat and bone meal fed to growing pigs. J. Anim. Sci. 94(Suppl. 2):105 (Abstr.) Link to abstract (.pdf)

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Effect of fat sources on ATTD of minerals

Merriman, L. A., C. L. Walk, and H. H. Stein. 2016. Effect of fat sources on ATTD of minerals. J. Anim. Sci. 94(Suppl. 2):104 (Abstr.) Link to abstract (.pdf)

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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)

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Digestible calcium requirements for 25 to 50 kg pigs

González-Vega, J. C., C. L. Walk, and H. H. Stein. 2016. Digestible calcium requirements for 25 to 50 kg pigs. J. Anim. Sci. 94(Suppl. 2):101 (Abstr.) Link to abstract (.pdf)

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Requirements for digestible Ca by growing pigs

González-Vega, J. C., C. L. Walk, and H. H. Stein. 2016. Requirements for digestible Ca by growing pigs. J. Anim. Sci. 94(Suppl. 2):101 (Abstr.) Link to abstract (.pdf)

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Effect of a 3-Strain Bacillus-based direct-fed microbial on relative tissue gene expression in nursery and finishing pigs fed low- or high-fiber diets

Jaworski, N. W., M. C. Walsh, and H. H. Stein. 2016. Effect of a 3-Strain Bacillus-based direct-fed microbial on relative tissue gene expression in nursery and finishing pigs fed low- or high-fiber diets. J. Anim. Sci. 94(Suppl. 2):83 (Abstr.) Link to abstract (.pdf)

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Effects of fiber, a direct-fed microbial, and feeding duration on ileal and total tract digestibility of energy and nutrients by pigs

Jaworski, N. W., M. C. Walsh, and H. H. Stein. 2016. Effects of fiber, a direct-fed microbial, and feeding duration on ileal and total tract digestibility of energy and nutrients by pigs. J. Anim. Sci. 94(Suppl. 2):73-74 (Abstr.) Link to abstract (.pdf)

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Evaluating protein quality of human foods using the pig as a model

Stein, H. H. 2016. Evaluating protein quality of human foods using the pig as a model. J. Anim. Sci. 94(Suppl. 2):20 (Abstr.) Link to abstract (.pdf)

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Requirement for digestible calcium by 25 to 50 kg pigs at different dietary concentration of phosphorus by growth performance and bone ash concentration

An excess of calcium in swine diets may increase excretion of phosphorus due to formation of Ca-P complexes. Therefore, when formulating diets for pigs, it is important to consider the ratio of calcium to phosphorus. The proper ratio should ensure that both minerals are maximally utilized in the bodies of the pigs.

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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)

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Effect of a 3 strain Bacillus-based direct-fed microbial on growth performance and intestinal concentrations of volatile fatty acids in nursery pigs fed low- or high-fiber diets

Increasing the inclusion of dietary fiber in nursery pig diets may stimulate beneficial gut microbiota and reduce post-weaning diarrhea. However, the digestibility of nutrients and energy is decreased in high fiber diets. Nursery pigs fed diets high in fiber have been shown to have reduced ADFI and G:F.

Bacillus-based direct-fed microbials (DFM) secrete a large amount and a wide variety of fiber degrading enzymes. It is thought that feeding DFM may offset some of the negative effects of  a high fiber diet. Therefore, an experiment was conducted to test the hypothesis that addition of a Bacillus-based DFM will increase fermentation of dietary fiber and improve growth performance when fed to nursery pigs.

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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)

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