Espinosa

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

Mallea, Andrea P., Charmaine D. Espinosa, Su A Lee, Minoy A. Cristobal, Leidy J. Torrez‑Mendoza, Hans H. Stein. 2024. Dietary supplementation of valine, isoleucine, and tryptophan may overcome the negative effects of excess leucine in diets  for weanling pigs containing corn fermented protein.    J. Anim. Sci.

Keywords: 
branched-chain amino acids, Corn fermented protein, leucine, Tryptophan, valine, Weanling pigs
Authors: 
Mallea, Espinosa, Lee, Cristobal, Torrez‑Mendoza, Stein
Publication Type: 
Peer-reviewed journal articles

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: 
Peer-reviewed journal articles

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: 
Amino acids Digestibility Energy Pigs Wheat middlings
Authors: 
Espinosa, Torres-Mendoza, Stein
Publication Type: 
Peer-reviewed journal articles

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: 
Lactating sows, olive-derived plant bioactive compounds, reproductive performance
Authors: 
Acosta, Espinosa, Stein
Publication Type: 
Research Reports

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: 
Abstracts

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: 
Abstracts

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: 
Espinosa, Stein
Publication Type: 
Abstracts

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: 
Abstracts

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: 
Extension Reports and other non-refereed publications

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: 
Peer-reviewed journal articles

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: 
Peer-reviewed journal articles

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: 
Peer-reviewed journal articles

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: 
Research Reports

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: 
Espinosa, Stein
Publication Type: 
Extension Reports and other non-refereed publications

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: 
Espinosa, Stein
Publication Type: 
Research Reports

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: 
Espinosa, Stein
Publication Type: 
Research Reports

Fiber in Swine Nutrition

Lancheros, J. P., C. D. Espinosa, S. A. Lee, M. S. Oliveira, and H. H. Stein. 2022. Fiber in Swine Nutrition. L. I. Chiba, editor, Sustainable Swine Nutrition. 2nd rev. ed. doi:10.1002/9781119583998.ch14. Link to full text.

Keywords: 
Fiber, swine, Nutrition
Authors: 
Lancheros, Espinosa, Lee, Oliveira, Stein
Publication Type: 
Book chapters

Digestibility of phosphorus in high protein corn co-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. Phytase is often employed during fermentation in the bioethanol process to improve the efficiency of fermentation. However, the use of phytase during fermentation may impact the nature of phosphorus (P) in any post fermentation products, which could subsequently alter the levels of phytate-bound and non-phytate P. As a consequence, this may influence digestibility and concentration of digestible P in any feed product derived from fermentation. Therefore, an experiment was conducted to determine the standardized total tract digestibility (STTD) of P in high protein corn fermented products and in the residual distillers dried grains and solubles (DDGS) produced from a fermentation with or without the use of phytase. It is also the objective of this experiment to test the hypothesis that inclusion of phytase during the fermentation process increases P digestibility in corn co-products.

Keywords: 
Digestibility, high protein corn fermented products, Phosphorus, Phytase, Pigs
Authors: 
Espinosa, Stein
Publication Type: 
Research Reports

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