Stein

Effects of inclusion rate of high fiber dietary ingredients on apparent ileal, hindgut, and total tract digestibility of dry matter and nutrients in mixed diets fed to growing pigs

Navarro, D. M. D. L., E. M. A. M. Bruininx, L. de Jong, and H. H. Stein. 2018. Effects of inclusion rate of high fiber dietary ingredients on apparent ileal, hindgut, and total tract digestibility of dry matter and nutrients in mixed diets fed to growing pigs. J. Anim. Sci. 96(Suppl. 2):160 (Abstr.) Link to abstract (.pdf)

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Effects of inclusion rate of high fiber dietary ingredients on concentration of digestible and metabolizable energy in mixed diets fed to growing pigs

Navarro, D. M. D. L., E. M. A. M. Bruininx, L. de Jong, and H. H. Stein. 2018. Effects of inclusion rate of high fiber dietary ingredients on concentration of digestible and metabolizable energy in mixed diets fed to growing pigs. J. Anim. Sci. 96(Suppl. 2):159 (Abstr.) Link to abstract (.pdf)

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Effects of Sangrovit® Extra on apparent ileal digestibility of amino acids, crude protein, acid hydrolyzed ether extract and starch by weanling pigs fed corn-soybean meal diets

Rundle, C. M. and H. H. Stein. 2018. Effects of Sangrovit® Extra on apparent ileal digestibility of amino acids, crude protein, acid hydrolyzed ether extract and starch by weanling pigs fed corn-soybean meal diets. J. Anim. Sci. 96(Suppl. 2):152 (Abstr.) Link to abstract (.pdf)

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Amino acid digestibility of a modified corn byproduct (Gold Pro) with and with a multi-enzyme supplement (CORE) when fed to weanling pigs

Soltwedel, K. T., F. B. Sandberg, W. B. Kwon, H. H. Stein, S. J. England, M. R. Bible, T. M. Fakler, and J. Y. Jacela. 2018. Amino acid digestibility of a modified corn byproduct (Gold Pro) with and with a multi-enzyme supplement (CORE) when fed to weanling pigs. J. Anim. Sci. 96(Suppl. 2):150 (Abstr.) Link to abstract (.pdf)

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Comparison between a novel phytase and a commercial phytase on growth performance and bone measurements in diets fed to growing pigs

Munoz Alfonso, C. J., L. Blavi, J. N. Broomhead, and H. H. Stein. 2018. Comparison between a novel phytase and a commercial phytase on growth performance and bone measurements in diets fed to growing pigs. J. Anim. Sci. 96(Suppl. 2):147-148 (Abstr.) Link to abstract (.pdf)

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Young Scholar Presentation: Nutritional value of rice coproducts fed to pigs

Casas, G. A. and H. H. Stein. 2018. Young Scholar Presentation: Nutritional value of rice coproducts fed to pigs. J. Anim. Sci. 96(Suppl. 2):143 (Abstr.) Link to abstract (.pdf)

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Standardized ileal digestibility of amino acids in three sources of hybrids of rye and in barley, wheat, and corn fed to growing pigs

McGhee, M. L. and H. H. Stein. 2018. Standardized ileal digestibility of amino acids in three sources of hybrids of rye and in barley, wheat, and corn fed to growing pigs. J. Anim. Sci. 96(Suppl. 2):142 (Abstr.) Link to abstract (.pdf)

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Effects of Dakota Gold and conventional distillers dried grains with solubles on wean to finish growth performance and carcass characteristics of pigs fed diets provided as pellets or in a meal form

Rodriguez, D. A., S. A. Lee, and H. H. Stein. 2018. Effects of Dakota Gold and conventional distillers dried grains with solubles on wean to finish growth performance and carcass characteristics of pigs fed diets provided as pellets or in a meal form. J. Anim. Sci. 96(Suppl. 2):141-142 (Abstr.) Link to abstract (.pdf)

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Impact of formaldehyde treated pig feed containing spray dried plasma on weaned pig growth performance

Campbell, J. M., J. D. Crenshaw, J. Polo, D. Mellick, M. Bienhoff, and H. H. Stein. 2018. Impact of formaldehyde treated pig feed containing spray dried plasma on weaned pig growth performance. J. Anim. Sci. 96(Suppl. 2):138-139 (Abstr.) Link to abstract (.pdf)

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Chemical analysis of formaldehyde treated spray dried plasma and effects on weaned pig growth performance when included in diets

Campbell, J. M., J. D. Crenshaw, J. Polo, D. Mellick, M. Bienhoff, and H. H. Stein. 2018. Chemical analysis of formaldehyde treated spray dried plasma and effects on weaned pig growth performance when included in diets. J. Anim. Sci. 96(Suppl. 2):138 (Abstr.) Link to abstract (.pdf)

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Copper hydroxychloride improves growth performance and reduces diarrhea frequency of weanling pigs fed a corn-soybean meal diet

Espinosa, C. D., S. R. Fry, J. L. Usry, and H. H. Stein. 2018. Copper hydroxychloride improves growth performance and reduces diarrhea frequency of weanling pigs fed a corn-soybean meal diet. J. Anim. Sci. 96(Suppl. 2):131-132 (Abstr.) Link to abstract (.pdf)

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Requirement for digestible calcium at different dietary concentrations of digestible phosphorus indicated by growth performance and bone ash of 50 to 85 kg pigs

Lagos, L. V., C. L. Walk, and H. H. Stein. 2018. Requirement for digestible calcium at different dietary concentrations of digestible phosphorus indicated by growth performance and bone ash of 50 to 85 kg pigs. J. Anim. Sci. 96(Suppl. 2):130-131 (Abstr.) Link to abstract (.pdf)

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Comparative digestibility and retention of calcium and phosphorus by gestating sows and growing pigs fed low- and high-phytate diets without or with microbial phytase

Lee, S. A., C. L. Walk, and H. H. Stein. 2018. Comparative digestibility and retention of calcium and phosphorus by gestating sows and growing pigs fed low- and high-phytate diets without or with microbial phytase. J. Anim. Sci. 96(Suppl. 2):83 (Abstr.) Link to abstract (.pdf)

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Degradation of dietary fiber in the stomach, small intestine, and large intestine of growing pigs fed corn- or wheat-based diets without or with microbial xylanase

Abelilla, J. J. and H. H. Stein. 2018. Degradation of dietary fiber in the stomach, small intestine, and large intestine of growing pigs fed corn- or wheat-based diets without or with microbial xylanase. J. Anim. Sci. 96(Suppl. 2):81 (Abstr.) Link to abstract (.pdf)

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Effects of various heat treatments on concentrations of digestible and metabolizable energy and on amino acid digestibility in soybean meal fed to growing pigs

Mathai, J. K., J. K. Htoo, M. Wiltafsky, and H. H. Stein. 2018. Effects of various heat treatments on concentrations of digestible and metabolizable energy and on amino acid digestibility in soybean meal fed to growing pigs. J. Anim. Sci. 96(Suppl. 2):25-26 (Abstr.) Link to abstract (.pdf)

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Effects of GraINzyme and AxtraPhy phytases in restoring performance and bone ash in pigs fed low-phosphorus and calcium diets

Last month's newsletter included a research report on research into a novel E. coli phytase expressed in corn, called GraINzyme. Results of that research indicated that adding GraINzyme phytase to diets fed to young growing pigs increased growth performance, digestibility of calcium and phosphorus, and bone mineralization. The comparative effects of GraINzyme and a commercial phytase was not tested in the previous study. Therefore, an experiment was conducted to compare effects of addition of GraINzyme phytase to the commercial phytase AxtraPhy in diets fed to growing pigs.

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Ileal digestibility of amino acids and starch in hybrid rye compared with other cereal grains fed to pigs

Hybrid rye is grown in Europe, Canada, and the United States, and compared with conventional rye, it has increased yields and reduced risk of ergot contamination, making it an interesting ingredient in the feeding of pigs. However, there is limited information about the nutritional value of hybrid rye when fed to pigs. Therefore, the objective of the experiment was to determine the standardized ileal digestibility (SID) of crude protein and amino acids, as well as the apparent ileal digestibility (AID) of starch in hybrid rye compared with barley, wheat, and corn.

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Analysis for low-molecular-weight carbohydrates is needed to account for all energy-contributing nutrients in some feed ingredients, but physical characteristics do not predict in vitro digestibility of dry matter

Navarro, D. M. D. L., E. M. A. M. Bruininx, L. de Jong, and H. H. Stein. 2018. Analysis for low-molecular-weight carbohydrates is needed to account for all energy-contributing nutrients in some feed ingredients, but physical characteristics do not predict in vitro digestibility of dry matter. J. Anim. Sci. 96:532-544. Link to full text

Nutrient composition and digestibility of energy and nutrients in wheat middlings and red dog fed to growing pigs

Casas, G. A., D. A. Rodriguez, and H. H. Stein. 2018. Nutrient composition and digestibility of energy and nutrients in wheat middlings and red dog fed to growing pigs. J. Anim. Sci. 96:215-224. Link to full text

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Effect on growth performance and bone mineralization of GraINzyme phytase in diets fed to growing pigs

Most of the phosphorus in corn and other plant-based feed ingredients fed to pigs is bound to phytate. Pigs do not secrete phytase in adequate quantities to liberate significant amounts of phytate-bound phosphorus, meaning that most of the phosphorus in these ingredients is not biologically available. Calcium digestibility is also negatively affected by the presence of phytate in feed ingredients. One way for producers to ensure that pigs' requirements are met is to add supplementary phosphorus to diets. However, this adds to the cost of diets. The excretion of phytate-bound phosphorus also may contribute to algae overgrowth in waterways.

Another approach is to add supplemental phytase to the diets, to allow pigs to better utilize the phosphorus present in the ingredients. Phytases can be obtained from plants, animals, or microorganisms (bacteria, yeasts, and fungi).

GraINzyme is a source of phytase produced by genetically modified corn plants with genes derived from E. coli. In this experiment, the effect on growth performance, apparent total tract digestibility (ATTD) of calcium and phosphorus, and bone mineralization of adding GraINzyme to weanling pig diets was tested.

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