Hans H. Stein

L. Vanessa Lagos, † Mike R. Bedford, ‡ and Hans H. Stein†, 1

Read more about Standardized ileal digestibility of amino acids is not affected by reducing particle sizes or different origins of field peas fed to growing pigs

Apparent digestibility of energy and nutrients and efficiency of microbial phytase is influenced by body weight of pigs

Lagos, L. Vanessa, Mike R. Bedford, and Hans H. Stein. 2022. Apparent digestibility of energy and nutrients and efficiency of microbial phytase is influenced by body weight of pigs. Journal of Animal Science, 2022, 100, 1–13. doi.org/10.1093/jas/skac269. Link to full text.

Keywords:

body weight, Energy, Nutrient digestibility, Phytase, phytate degradation, Pigs

Authors:

Publication Type:

Peer-reviewed journal articles

Digestibility of amino acids in ten sources of wheat middlings fed to growing pigs

Data for the composition of wheat middlings from flour mills in the U.S. and for the standardized ileal digestibility (SID) of crude protein (CP) and amino acids (AA) have been published for wheat middlings from the U.S. However, it is not known if the data obtained from wheat middlings from the U.S. also are representative for wheat middlings in Europe. Therefore, an experiment was conducted to test the hypothesis that there are no differences in composition and SID of CP and AA between wheat middlings sourced from flour mills in Europe and in the U.S.

Keywords:

Amino acids, Digestibility, Wheat middlings, Pigs

Authors:

Publication Type:

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Digestibility of energy and concentrations of digestible and metabolizable energy 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 evaluate the digestible energy (DE) and metabolizable energy (ME) of high protein corn fermented products and in Post MSC DDGS.

Keywords:

Corn, Digestibility, Energy, high protein corn fermented products, Pigs

Authors:

Publication Type:

Extension Reports and other non-refereed publications

Read more about Digestibility of energy and concentrations of digestible and metabolizable energy in high protein corn fermented products fed to growing pigs

Water source placement does not impact energy, nutrient utilization

Lee, S. A., D. A. Rodriguez, and H. H. Stein. 2022. Water source placement does not impact energy, nutrient utilization. National Hog Farmer, On-line edition, Oct. 12, 2022.

Keywords:

water, Animal health, Pigs

Authors:

Lee, Rodriguez, Stein

Publication Type:

Read more about Water source placement does not impact energy, nutrient utilization

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.

Keywords:

Vitamin D, metabolites, Calcium, Phosphorus, Pigs

Authors:

Lee, Stein

Publication Type:

Conference proceedings

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).

Keywords:

Amino acids, Corn, Digestibility, high protein corn fermented products, Pigs

Authors:

Publication Type:

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

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.

Keywords:

enhanced torula yeast, cytokines, Fecal score, Growth performance, Pigs

Authors:

Publication Type:

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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.

Keywords:

Digestibility, Calcium, Phosphorus, Phytase, Pigs, Sunflower meal

Authors:

Ibagon, Espinosa, Stein

Publication Type:

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

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.

Keywords:

Copper, intestinal microbiota, Pigs

Authors:

Blavi, Pérez, Forouzandeh, Manzke, Stein, Ipharraguerre

Publication Type:

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.

Keywords:

Copper, liver, Growth performance, Pigs

Authors:

Forouzandeh, Sola-Oriol, Monteiro, Stein, Pérez, Blavi

Publication Type:

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.

Keywords:

phytate, Nutrient digestibility, plasma metabolites, Bone ash, Pigs, Phytase

Authors:

Lagos, Bedford, Stein

Publication Type:

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.

Keywords:

Digestibility, Amino acids, Calcium, Pigs

Authors:

Lee, Stein

Publication Type:

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.

Keywords:

Net energy, Soybean meal, Pigs

Authors:

Lee, Rodriguez, Stein

Publication Type:

Extension Reports and other non-refereed publications

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.

Keywords:

Calcium, Phosphorus, Gestation, Pigs

Authors:

Lee, Stein

Publication Type:

Digestibility of starch, crude protein and amino acids in three sources of field peas ground at two different particle sizes fed to growing pigs

Market opportunities for field peas (Pisum sativum L.) have rapidly increased for livestock feed and human food, due of the high nutritional quality of pea protein. However, as is the case with some feed ingredients, differences in soil, varieties, agronomic practices and growing method may change the nutritional characteristics of the peas as well as digestibility of nutrients. In addition, it is possible that differences in the particle size of field peas change the digestibility of energy and nutrients as has been reported for other ingredients. However, information about the effects of particle size of peas on digestibility of starch and amino acids (AA) are limited. Additionally, there is limited research to compare the digestibility of AA among field peas produced in different regions of the U.S. and Canada. Therefore, the objective of this experiment was to test the hypothesis that the apparent ileal digestibility (AID) of crude protein and starch, and the standardized ileal digestibility (SID) of AA in field peas may be affected by the particle size of the field peas and the region where the field peas were grown.

Keywords:

Amino acids, Nutrient composition, Field peas, Pigs

Authors:

Ibagon, Lee, Oliveira, Stein

Publication Type:

: amino acids, isoquinoline alkaloids, Pigs

Read more about Digestibility of starch, crude protein and amino acids in three sources of field peas ground at two different particle sizes fed to growing pigs

Isoquinoline Alkaloids Improve Intestinal Function of Weanling Pigs Fed Corn-Soybean Meal Diets Formulated Below Amino Acid Requirements

Rundle, C. M., V. Artuso-Ponte, and H. H. Stein. 2022. Isoquinoline Alkaloids Improve Intestinal Function of Weanling Pigs Fed Corn-Soybean Meal Diets Formulated Below Amino Acid Requirements. J. Anim. Sci. 100(Suppl. 2): 183–184. doi.org/10.1093/jas/skac064.311. Link to Abstr.

Keywords:

Authors:

Rundle, Artuso-Ponte, Stein

Publication Type:

Effect of Increasing Levels of a Novel Consensus Bacterial 6-Phytase Variant on Ileal and Total Tract Digestibility of Nutrients in Diets Fed to Young Pigs.

Espinosa, C. D., D. Velayudhan, Y. Dersjant-Li, and H. H. Stein. 2022. Effect of Increasing Levels of a Novel Consensus Bacterial 6-Phytase Variant on Ileal and Total Tract Digestibility of Nutrients in Diets Fed to Young Pigs. J. Anim. Sci. 100(Suppl.2): 34–35. doi.org/10.1093/jas/skac064.056. Link to Abstr.

Keywords:

Digestibility, Phytase, Pigs

Authors:

Espinosa, Velayudhan, Dersjant-Li, Stein

Publication Type:

Novel bacterial phytase impact on pigs

Espinosa, C. D., and H. H. Stein. 2022. Novel bacterial phytase impact on pigs. National Hog Farmer, On-line edition, March 31, 2022. Link to full text.

Keywords:

Animal health, Phytase, Pigs

Authors:

Extension Reports and other non-refereed publications

Publication Type:

Ileal and total tract digestibility of energy and nutrients in pig diets supplemented with a novel consensus bacterial 6-phytase

The effect of microbial phytase on Ca and P digestibility in diets for pigs and poultry is well established. In poultry, it also appears that the effect of phytase in increasing amino acid (AA) digestibility is consistent, but that is not the case when phytase is added to diets for pigs. However, in many experiments, relatively low levels of phytase was used and it is not known if greater concentrations of phytase will result in a different result. A novel phytase has been recently developed; however, it is also not known if this phytase source can increase digestibility of AA and other nutrients. Therefore, an experiment was conducted to test the hypothesis that inclusion of increasing levels of the novel phytase in diets for growing pigs increases the apparent ileal digestibility (AID) of crude protein (CP) and AA, and the apparent total tract digestibility (ATTD) of gross energy (GE) and minerals.

Keywords:

Amino acids, Digestibility, Gross energy, Minerals, Phytase, Pigs

Authors:

Publication Type: