Hans H. Stein

Read more about Dietary supplementation of valine, isoleucine, and tryptophan may overcome the negative effects of excess leucine in diets for weanling pigs containing corn fermented protein

Exogenous xylanase increases total tract digestibility of energy and fiber in diets for gestating and lactating sows, but does not influence reproductive performance of sows

Acosta, Jessica P., Charmaine D. Espinosa, Gemma Gonzalez-Ortiz, Sofia Gonzalez-LasHeras, Maria J. Rodríguez-Lagunas, Francisco J. Perez-Cano, Hans H. Stein. 2024.

Keywords:

Digestibility, Energy, Fiber, reproductive performance, Sows, Xylanase

Authors:

Acosta, Espinosa, Gonzalez-Ortiz, Gonzalez-LasHeras, Rodríguez-Lagunas, Perez-Cano, Stein

Publication Type:

Read more about Exogenous xylanase increases total tract digestibility of energy and fiber in diets for gestating and lactating sows, but does not influence reproductive performance of sows

Influence of a novel phytase on Ca and P digestibility in diets fed to sows in late-gestation and lactation

Espinosa Charmaine D., Leidy J. Torres-Mendoza, Jonathan R. Bergstrom, Hans H. Stein. 2024. Influence of a novel phytase on Ca and P digestibility in diets fed to sows in late-gestation and lactation. Animal Feed Science and Technology 309 (2024) 115906. doi.org/10.1016/j.anifeedsci.2024.115906. Link to full text.

Keywords:

Calcium, Digestibility, gestating sows, Lactating sows, Phosphorus, Phytase

Authors:

Espinosa, Torres-Mendoza, Bergstrom, Stein

Publication Type:

Amino acids Digestibility Energy Pigs Wheat middlings

Nutrient composition and digestibility by growing pigs of amino acids and energy vary between wheat middlings from Europe and the United States

Espinosa, Charmaine D., Leidy J. Torres-Mendoza, Hans H. Stein. 2024. Nutrient composition and digestibility by growing pigs of amino acids and energy vary between wheat middlings from Europe and the United States. Animal Feed Science and Technology 309 (2024) 115905. doi.org/10.1016/j.anifeedsci.2024.115905.

Keywords:

Authors:

Espinosa, Torres-Mendoza, Stein

Publication Type:

Lactating sows, olive-derived plant bioactive compounds, reproductive performance

Read more about Nutrient composition and digestibility by growing pigs of amino acids and energy vary between wheat middlings from Europe and the United States

Reproductive performance and immune status of sows fed diets containing Olextra 1200 during lactation

The olive oil tree (Olea europaea L.) contains hydrophilic and lipophilic bioactive compounds, which include flavones, phenolic acids, phenolic alcohols, secoiridoids, and hydroxycinnamic acid derivatives. These bioactive compounds have anti-inflammatory, antimicrobial, and antioxidant properties, and therefore, olive-derived plant bioactive compounds may reduce chronic inflammation and intestinal integrity in pigs. Therefore, olive-derived plant bioactive compounds, such as Olextra 1200, may improve health and prevent disease by inhibiting B cell activation and cytokine expression. However, there is a lack of data demonstrating effects of olive extracts on reproductive performance of sows and their offspring. Therefore, the objective of this experiment was to test the hypothesis that dietary supplementation of Olextra 1200 increases reproductive performance as well as the immune status of sows.

Keywords:

Authors:

Acosta, Espinosa, Stein

Publication Type:

Read more about Reproductive performance and immune status of sows fed diets containing Olextra 1200 during lactation

Effect of Microbial Phytase on Digestibility of Phosphorus in Seven Sources of Sunflower co-Products Fed to Growing Pigs

Ibagon, Jimena A., Hans H. Stein, Charmaine D. Espinosa. 2023. Effect of Microbial Phytase on Digestibility of Phosphorus in Seven Sources of Sunflower co-Products Fed to Growing Pigs. J. Anim. Sci. Volume 101, Issue Supplement 2, Pages 303–304, doi.org/10.1093/jas/skad341.345. Link to abstract.

Keywords:

Calcium, Digestibility, Phosphorus, pig, sunflower co-product

Authors:

Ibagon, Stein, Espinosa

Publication Type:

Endosperm Hardness in Corn Affects the Digestibility of Energy and Fiber, and Increased Drying Temperature Reduces Amino Acid Digestibility

Espinosa, Charmaine D., Joaquin Cabañas-Ojeda, Edgar Oviedo-Rondon, Hans H. Stein. 2023. Endosperm Hardness in Corn Affects the Digestibility of Energy and Fiber, and Increased Drying Temperature Reduces Amino Acid Digestibility. J. Anim. Sci., Volume 101, Issue Supplement 2, Pages 299–300, doi.org/10.1093/jas/skad341.340. Link to abstract.

Keywords:

Corn, Digestibility, Pigs

Authors:

Espinosa, Cabañas-Ojeda, Oviedo-Rondón, Stein

Publication Type:

Effect of Two Torula Yeast Sources on Growth Performance, Intestinal Health, and Immune Function of Weanling Pigs

Espinosa, Charmaine D., Hans H. Stein. 2023. Effect of Two Torula Yeast Sources on Growth Performance, Intestinal Health, and Immune Function of Weanling Pigs. J. Anim. Sci., Volume 101, Issue Supplement 2, Pages 298–299, doi.org/10.1093/jas/skad341.339. Link to abstract.

Keywords:

intestinal health, Pigs, torula yeast

Authors:

Publication Type:

Concentration of Digestible Energy in Corn-Based Diets Fed to Gestating and Lactating Sows is Increased by Adding Xylanase to the Diets

Acosta Medellin, Jessica P., Charmaine D. Espinosa, Gemma Gonzalez Ortiz, Hans H. Stein. 2023. Concentration of Digestible Energy in Corn-Based Diets Fed to Gestating and Lactating Sows is Increased by Adding Xylanase to the Diets. J. Anim. Sci., Volume 101, Issue Supplement 2, Pages 35–36, doi.org/10.1093/jas/skad341.040. Link to abstract.

Keywords:

Dietary fiber, Energy, Sows, Xylanase

Authors:

Acosta, Espinosa, González, Stein

Publication Type:

Extension Reports and other non-refereed publications

Increasing phosphorus digestibility in novel corn fermented products

Espinosa, C. D., J. D. Ward, and H. H. Stein. 2023. Increasing phosphorus digestibility in novel corn fermented products. National Hog Farmer, July 27, 2023.

Keywords:

Nutrition, Pigs, Phosphorus, fermented products

Authors:

Espinosa, Ward, Stein

Publication Type:

Read more about Increasing phosphorus digestibility in novel corn fermented products

Ferulic and coumaric acid in corn and soybean meal-based diets and in feces from pigs fed these diets

Lancheros, Jeimmy Paola, Charmaine D. Espinosa, Roelant Hilgers, Mirjam A. Kabelb, and Hans H. Stein. 2023. Ferulic and coumaric acid in corn and soybean meal-based diets and in feces from pigs fed these diets. J. Sci. Food Agric. 103: 5171–5176. doi 10.1002/jsfa.12572. Link to full text.

Keywords:

arabinoxylan; corn; coumaric acid; distillers dried grains with solubles; ferulic acid; pigs

Authors:

Lancheros, Espinosa, Hilgers, Kabel, Stein

Publication Type:

Effects of corn hardness and drying temperature on digestibility of energy and nutrients in diets fed to growing pigs

Espinosa, Charmaine D., Joaquin Cabañas-Ojeda, Edgar O. Oviedo-Rondón, and Hans H. Stein. 2023. Effects of corn hardness and drying temperature on digestibility of energy and nutrients in diets fed to growing pigs. Journal of Animal Science, 101: 1–9. doi.org/10.1093/jas/skad124. Link to full text.

Keywords:

Amino acids, Corn, Digestibility, drying temperature, Energy, Pigs

Authors:

Espinosa, Cabañas-Ojeda, Oviedo-Rondón, Stein

Publication Type:

Torula yeast may improve intestinal health and immune function of weanling pigs

Espinosa, Charmaine D., Leidy J. Torres-Mendoza, and Hans H. Stein. 2023. Torula yeast may improve intestinal health and immune function of weanling pigs. Journal of Animal Science: 101, 1–11. doi.org/10.1093/jas/skad087. Link to full text.

Keywords:

immune response, intestinal health, Growth performance, Pigs, torula yeast

Authors:

Espinosa, Torres-Mendoza, Stein

Publication Type:

Exogenous xylanase increases digestibility of energy and fiber in diets for gestating and lactating sows

Exogenous enzymes may improve the fermentability of dietary fiber in swine diets by hydrolyzing non-starch polysaccharides into oligosaccharides and sugars. In particular, the enzyme xylanase hydrolyzes the β-(1-4) glycosidic bonds between the xylose units in the backbone of arabinoxylans in cereal grains and grain coproducts, resulting in the release of a combination of xylose, arabinose, and xylo-oligosaccharides from arabinoxylans that can be fermented by pigs. Previous data indicate that xylanase increased the degradation of dietary fiber and increased energy digestibility in diets for growing pigs; however, there are limited data for the impact of xylanase on energy and fiber digestibility in gestating and lactating sows. Therefore, an experiment was conducted to test the hypothesis that exogenous xylanase added to diets for gestating and lactating sows will increase the apparent total tract digestibility (ATTD) of gross energy and total dietary fiber (TDF), and increase the concentrations of digestible energy (DE) and metabolizable energy (ME) during two reproductive cycles.

Keywords:

Digestibility, Energy, Fiber, Sows, Xylanase

Authors:

Acosta, Espinosa, Gonzalez-Ortiz, Stein

Publication Type:

Read more about Exogenous xylanase increases digestibility of energy and fiber in diets for gestating and lactating sows

Variability in wheat middlings; are there differences in digestibility, composition among sources?

Espinosa, C. D., and H. H. Stein. 2023. Variability in wheat middlings; are there differences in digestibility, composition among sources? National Hog Farmer, March/April 2023. Link to full text.

Keywords:

Wheat middlings, Digestibility, Pigs

Authors:

Extension Reports and other non-refereed publications

Publication Type:

Effects of different corn sources and drying temperature on digestibility of energy and total dietary fiber in diets fed to growing pigs

Drying temperatures and corn varieties that inherently differ in kernel hardness, virtuousness, and protein solubility index may influence nutrient digestibility in corn. However, information about interactive effects of corn source (i.e., endosperm hardness) and drying method on energy and nutrient digestibility is limited. Therefore, an experiment was conducted to test the hypothesis that that the apparent total tract digestibility (ATTD) of gross energy (GE) and total dietary fiber (TDF) is influenced by corn source and drying temperature.

Keywords:

Corn, Dietary fiber, Digestibility, Energy, Pigs

Authors:

Publication Type:

Read more about Effects of different corn sources and drying temperature on digestibility of energy and total dietary fiber in diets fed to growing pigs

Effects of different corn sources and drying temperature on ileal digestibility of starch and amino acids in diets fed to growing pigs

Drying temperatures and corn varieties that inherently differ in kernel hardness, virtuousness, and protein solubility index may influence nutrient digestibility in corn. However, information about interactive effects of corn source (i.e., endosperm hardness) and drying method on nutrient digestibility is limited. Therefore, an experiment was conducted to test the hypothesis that the ileal digestibility of starch, crude protein (CP), and amino acids (AA) is influenced by corn source and drying temperature.

Keywords:

Amino acids, Corn, Digestibility, Pigs, starch Authors: Espinosa, Stein

Authors:

Publication Type: