Stein

Standardized total tract digestibility of phosphorus in three different sources of field peas (Pisum sativum L.) with different particle sizes fed to weanling pigs

Field peas have been produced mainly for human consumption, but lastly, the industry has been included in diets fed to livestock due to its content of starch and protein. In diets for swine, only peas that are harvested at maturity are used. Almost 80% of P in non-oilseed legumes is bound to phytate, and pigs do not synthesize an adequate amount of endogenous phytate to liberate the P bound to phytate. Therefore, the digestibility of P in field peas is relatively low. Values for apparent total tract digestibility (ATTD) and standardized total tract digestibility (STTD) of P in field peas have been reported, but there are no comparative values for the ATTD and STTD of P among different varieties of field peas at different particle sizes. Therefore, the objective of this experiment was to test the hypothesis that there are no differences in the ATTD and the STTD of P among different sources of field peas fed to young pigs and the second hypothesis was that there is a linear increase in the ATTD and STTD of P as the particle size of field peas increases.

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Direct fed microbials increase energy and nutrient digestibility

Oliveira, M. S., and H. H. Stein. 2022. Direct fed microbials increase energy and nutrient digestibility. National Hog Farmer, On-line edition, Sep. 24, 2022. Link to full text.

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Apparent ileal digestibility of amino acids by pigs is not affected by increasing dietary calcium from deficient to excess concentrations, but phosphorus digestibility is reduced

Lee, Su A, H. H. Stein. 2022. Apparent ileal digestibility of amino acids by pigs is not affected by increasing dietary calcium from deficient to excess concentrations, but phosphorus digestibility is reduced. Animal Feed Science and Technology 292 (2022) 115436. Link to full text.
 

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Effects of Copper on nutrient utilization in growing pigs.

Espinosa, C. D., and H. H. Stein. 2022. Effects of Copper on nutrient utilization in growing pigs. Proc. 21th Annual Midwest Swine Nutrition Conf. Danville, IN, Sep. 8, 2022. Pages 53-57. Link to full text.

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Vitamin D and vitamin D metabolites impact on calcium and phosphorus balance in gestating sows

Lee, S. A, and H. H. Stein. 2022. Vitamin D and vitamin D metabolites impact on calcium and phosphorus balance in gestating sows. Proc. 21th Annual Midwest Swine Nutrition Conf. Danville, IN, Sep. 8, 2022. Pages 39-43. Link to full text.

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Digestibility of amino acids in high protein corn fermented products fed to growing pigs

New sources of high protein corn co-products have been recently developed and may be included in diets fed to pigs. High protein corn fermented products have been evaluated in several economically important livestock species, but additional information is required with respect to the use of these products in pigs. Therefore, an experiment was conducted to test the hypothesis that the standardized ileal digestibility (SID) of crude protein (CP) and amino acids (AA) in high protein corn fermented products and in the residual distillers dried grains and solubles (DDGS) is greater than in soybean meal (SBM).

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Effect of SylPro yeast on growth performance and intestinal health of weanling pigs

SylPro enhanced torula yeast is a high protein feed ingredient derived from forestry by-products, and results from digestibility experiments indicate that SylPro yeast may be a great source of energy and digestible amino acids in diets fed to weanling pigs. Previous experiments further demonstrated that increasing levels of SylPro yeast resulted in increased feed efficiency of pigs, which is likely a result of a positive effect of SlyPro yeast on intestinal health and immune function of pigs. However, there are no data to demonstrate effects of SylPro yeast on the immune response of pigs. It is also not known if SylPro yeast influences pig performance and intestinal health similarly as conventional torula yeast. Therefore, an experiment was conducted to test the hypothesis that inclusion of SylPro yeast in diets fed to pigs improves growth performance and intestinal health. The second objective was to determine if there are differences between the two torula yeast sources in influencing growth performance and immune response of pigs.

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Effect of microbial phytase on digestibility of phosphorus in seven sources of sunflower meal fed to growing pigs

The majority of P in oilseed co-products is bound to phytate; however, pigs do not synthesize adequate amount of endogenous phytate to liberate the P bound to phytate and the digestibility of P in sunflower meal, therefore is low. Values for ATTD and STTD of P in sunflower meal (SFM) without and with phytase have been reported, but there are no comparative values for the ATTD and STTD of P in sunflower co-products produced in different parts of the world. Therefore, the objective of this experiment was to determine the ATTD and the STTD of P in different sources of sunflower co-products, and to test the hypothesis that regardless of source, microbial phytase increases the digestibility of P in sunflower co-products fed to young pigs.

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The combination of spray dried plasma and reduced crude protein in diets decreases circulating cytokines of weanling pigs

Bailey, H., J. Campbell, and H. H. Stein. 2022. The combination of spray dried plasma and reduced crude protein in diets decreases circulating cytokines of weanling pigs. 15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 214. Link to abstract.

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Effects of copper source on bile acid profiles and intestinal microbiota in finishing pigs

Blavi, L., J. F. Pérez, A. Forouzandeh, N. E. Manzke, H. H. Stein, and I. R. Ipharraguerre. 2022. Effects of copper source on bile acid profiles and intestinal microbiota in finishing pigs. 15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 152. Link to abstract.

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Effect of short-term Cu supplementation on biochemical parameters of liver and growth performance in pigs

Forouzandeh, A., D. Solà-Oriol, A. Monteiro, H. H. Stein, J. F. Pérez, and L. Blavi. 2022. Effect of short-term Cu supplementation on biochemical parameters of liver and growth performance in pigs. 15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 182 - 183. Link to abstract.

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Phytate breakdown, nutrient digestibility, plasma metabolites, and bone ash of pigs fed increasing phytase levels for a long adaptation period

Lagos, V., M. Bedford, and H. H. Stein. 2022. Phytate breakdown, nutrient digestibility, plasma metabolites, and bone ash of pigs fed increasing phytase levels for a long adaptation period. 15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 174-175. Link to abstract.

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The digestibility of energy and nutrients and the efficiency of phytase to degrade phytate is influenced by pig body weight

Lagos, V., M. Bedford, and H. H. Stein. 2022. The digestibility of energy and nutrients and the efficiency of phytase to degrade phytate is influenced by pig body weight. 15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 174. Link to abstract.

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Effect of a novel consensus bacterial 6-phytase variant on inositol hexa-phosphate degradation profile in growing pigs.

Velayudhan, D., T. Christensen, S. Knudsen, L. Marchal, Y. Dersjant-Li, and H. H. Stein. 2022. Effect of a novel consensus bacterial 6-phytase variant on inositol hexa-phosphate degradation profile in growing pigs. 15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 180. Link to abstract.

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Digestibility of amino acids is not affected by increasing calcium from deficient to over-sufficient concentration in diets fed to pigs

Lee, Su A, and H. H. Stein. 2022. Digestibility of amino acids is not affected by increasing calcium from deficient to over-sufficient concentration in diets fed to pigs.15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 178 - 179. Link to abstract.

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Determination of the net energy in soybean meal fed to group-housed pigs

Lee, Su A, D. A. Rodriguez, and H. H. Stein. 2022. Determination of the net energy in soybean meal fed to group-housed pigs. 15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 178. Link to abstract.

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Isoquinoline alkaloids impact intestinal health and function of weanling pigs fed diets formulated below amino acid requirements

Rundle, C., V. Artuso-Ponte, and H. H. Stein. 2022. Isoquinoline alkaloids impact intestinal health and function of weanling pigs fed diets formulated below amino acid requirements. 15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 176. Link to Abstract.

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Calcium and phosphorus in late-gestation

Lee, S. A., and H. H. Stein. 2022. Calcium and phosphorus in late-gestation. National Hog Farmer, On-line edition, July 14, 2022. Link to full text. 

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Comparison of True Ileal Amino Acid Digestibility between Adult Humans and Growing Pigs

Hodgkinson, Suzanne M., Natascha Stroebinger, Nikkie van der Wielen, Marco Mensink, Carlos Montoya, Wouter H. Hendriks, Sonja de Vries, Hans H. Stein, and Paul J. Moughan. 2022. Comparison of True Ileal Amino Acid Digestibility between Adult Humans and Growing Pigs. J. Nutr. 2022;152:1635–1646. doi.org/10.1093/jn/nxac077.

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