Espinosa

Effect of Hydrolyzed Spray-Dried Bovine Plasma and Spray-Dried Bovine Plasma Sources on Growth Performance of Weanling Pigs

Espinosa, C. D., J. Campbell, H. H. Stein. 2022. Effect of Hydrolyzed Spray-Dried Bovine Plasma and Spray-Dried Bovine Plasma Sources on Growth Performance of Weanling Pigs. J. Anim. Sci. 100(Suppl. 2): 137–138. doi.org/10.1093/jas/skac064.235. Link to Abstr.

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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.

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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.

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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.

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Growth performance of weanling pigs fed diets based on conventional corn or high-oil corn

Conventional breeding of corn has generated a new variety (i.e., high-oil corn) which is believed to contain greater concentrations of oil and crude protein than conventional corn. Indeed, results from digestibility experiments indicated that high-oil corn contained more standardized ileal digestible amino acids, digestible P, and metabolizable energy compared with conventional corn. It is, therefore, possible that the newly developed high-oil corn may improve pig growth performance, but data to demonstrate this are limited. Therefore, an experiment was conducted to test the hypothesis that high-oil corn improves growth performance of weanling pigs.

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Standardized total tract digestibility of phosphorus in bakery meal fed to pigs and effects of bakery meal on growth performance of weanling pigs

Luciano, A., C. D. Espinosa, L. Pinotti, H. H. Stein. 2022. Standardized total tract digestibility of phosphorus in bakery meal fed to pigs and effects of bakery meal on growth performance of weanling pigs. Animal Feed Science and Technology 284: 115148. doi.org/10.1016/j.anifeedsci.2021.115148.

Replacing corn with bakery meal in weanling pig diets: effect on welfare and growth performance

Luciano, A., C. D. Espinosa, L. Pinotti, and H. H. Stein. 2021. Replacing corn with bakery meal in weanling pig diets: effect on welfare and growth performance. Book of Abstracts. 72nd Ann. Meet. European Fed. Anim.  Sci. Aug. 30 – Sep. 3, 2021, Davos Switzerland. Page 413. Link to abstract.

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Long-term steam conditioning is needed to maximize the nutritional value of expander-processed soybean expellers

Espinosa, Charmaine D., Maryane S. F. Oliveira, Joseph R. Limbach, Natalia S. Fanelli, Markus K. Wiltafsky-Martin, and Hans H. Stein. 2021. Long-term steam conditioning is needed to maximize the nutritional value of expander-processed soybean expellers. Can. J. Anim. Sci. 101: 704–714 (2021) dx.doi.org/10.1139/cjas-2021-0029. Link to full text.

Growth performance of weanling pigs fed diets with spray-dried bovine plasma or hydrolyzed spray-dried bovine plasma

Spray-dried plasma protein is commonly used in weanling diets due its functional components and high concentration of digestible amino acids. Hydrolyzed spray-dried bovine plasma (H-SDBP) is a new source of spray-dried plasma protein that may be used as a protein source in diets for weanling pigs. There are, however, no data to demonstrate the efficacy of this novel source. Pigs fed diets spray-dried plasma protein have increased growth performance when exposed to a challenge model; therefore, it is possible that H-SDBP improves performance of challenged pigs similarly as other sources of spray-dried plasma protein. Therefore, an experiment was conducted to test the hypothesis that dietary inclusion of H-SDBP is as effective as spray-dried bovine plasma (SDBP) in increasing growth performance of weanling pigs housed in uncleaned pens.

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Effect of phytase on mineral digestibility and growth performance of pigs fed diets with pharmacological levels of Zn

Espinosa, C. D., D. Velayudhan, Y. Dersjant-Li, J. Remus, H. H. Stein. 2021. Effect of phytase on mineral digestibility and growth performance of pigs fed diets with pharmacological levels of Zn. J. Anim. Sci. 99(Suppl. S3): 400-401. doi.org/10.1093/jas/skab235.727. Link to abstract.

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Effects of supplemental d-methionine in comparison to l-methionine on nitrogen retention, gut morphology, antioxidant status, and mRNA abundance of amino acid transporters in weanling pigs

Espinosa, Charmaine D., John K. Mathai, Laia Blavi, Yanhong Liu, John K. Htoo, J. Caroline Gonzalez-Vega, and Hans H. Stein. 2021. Effects of supplemental d-methionine in comparison to l-methionine on nitrogen retention, gut morphology, antioxidant status, and mRNA abundance of amino acid transporters in weanling pigs. Journal of Animal Science, 2021, Vol. 99, No. 9, 1–10. doi.org/10.1093/jas/skab248.

Digestibility of amino acids and concentration of metabolizable energy are greater in high-oil corn than in conventional corn when fed to growing pigs

Espinosa, C. D., N. S. Fanelli, H. H. Stein. 2021. Digestibility of amino acids and concentration of metabolizable energy are greater in high-oil corn than in conventional corn when fed to growing pigs. Animal Feed Science and Technology 280: 115040. doi.org/10.1016/j.anifeedsci.2021.115040. Link to full text.

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Influence of a novel consensus bacterial 6-phytase variant on mineral digestibility and bone ash in young growing pigs fed diets with different concentrations of phytate-bound phosphorus

Espinosa, Charmaine D., Maryane S. F. Oliveira, Deepak E. Velayudhan, Yueming Dersjant-Li, Hans H. Stein. 2021. Influence of a novel consensus bacterial 6-phytase variant on mineral digestibility and bone ash in young growing pigs fed diets with different concentrations of phytate-bound phosphorus. Journal of Animal Science, 2021, Vol. 99, No. 8, 1–12. doi.org/10.1093/jas/skab211.

Corn protein has greater concentrations of digestible amino acids and energy than low-oil corn distillers dried grains with solubles when fed to pigs but does not affect the growth performance of weanling pigs

Acosta, Jessica P., Charmaine D. Espinosa, Neil W. Jaworski, and Hans H. Stein. 2021. Corn protein has greater concentrations of digestible amino acids and energy than low-oil corn distillers dried grains with solubles when fed to pigs but does not affect the growth performance of weanling pigs. Journal of Animal Science, 2021, Vol. 99, No. 7, 1–12. doi:10.1093/jas/skab175.

Effect of phytase on weaning piglet performance when fed diets supplemented with pharmacological levels of Zn

Pharmacological levels of Zn (i.e., 2,000 to 3,000 mg/kg) is often included in diets for weanling pigs to prevent post-weaning diarrhea. However, pharmacological levels of Zn may reduce microbial phytase efficacy by chelating the phytate molecule, which subsequently prevents access for phytase.  However, it is possible that this effect can be reduced by adding more phytase to diets. Therefore, an experiment was conducted to test the hypothesis that inclusion of increasing levels of phytase increases pig growth performance and mineral digestibility in diets with 3,000 mg/kg of Zn.

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Effect of dietary crude protein level on growth performance, blood characteristics, and indicators of intestinal health in weanling pigs

Limbach, Joseph R., Charmaine D. Espinosa, Estefania Perez-Calvo, and Hans H. Stein. 2021. Effect of dietary crude protein level on growth performance, blood characteristics, and indicators of intestinal health in weanling pigs. Journal of Animal Science, 2021, Vol. 99, No. 6, 1–14. doi:10.1093/jas/skab166. Link to full text.

A Corn Protein Product Has Greater Concentration of Digestible Amino Acids and Energy Than Low-oil Distillers Dried Grains with Solubles When Fed to Pigs and May Be Used in Diets for Weanling Pigs

Acosta, J. P., C. D. Espinosa, N. Jaworski, and H. H. Stein. 2021. A Corn Protein Product Has Greater Concentration of Digestible Amino Acids and Energy Than Low-oil Distillers Dried Grains with Solubles When Fed to Pigs and May Be Used in Diets for Weanling Pigs. J. Anim. Sci. 99(Suppl. 1): 85–86. doi.org/10.1093/jas/skab054.139. Link to Abstract.

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Conditioning and Expansion Increases Nutritional Value of Soybean Expellers

Espinosa, C. D., M. S. F. Oliveira, J. R. Limbach, N. Fanelli, M. Wiltafsky-Martin, and H. H. Stein. 2021. Conditioning and Expansion Increases Nutritional Value of Soybean Expellers. J. Anim. Sci. 99(Suppl. 1): 83–84. doi.org/10.1093/jas/skab054.135. Link to Abstract.

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Effect of a Novel Consensus Bacterial 6-phytase Variant on Mineral Digestibility and Bone Ash in Young Growing Pigs Fed Diets with Different Concentrations of Phytate

Espinosa, C. D., D. E. Velayudhan, Y. Dersjant-Li, and H. H. Stein. 2021. Effect of a Novel Consensus Bacterial 6-phytase Variant on Mineral Digestibility and Bone Ash in Young Growing Pigs Fed Diets with Different Concentrations of Phytate. J. Anim. Sci. 99(Suppl. 1): 45–46, doi.org/10.1093/jas/skab054.079. Link to Abstract.

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Digestibility of P and concentrations of digestible and metabolizable energy in high-oil corn fed to growing pigs

Conventional breeding of corn has generated a new variety (i.e., high-oil corn; Byron Seeds LLC, Rockville, IN), which is believed to contain more oil and phosphorus than conventional corn. Because of the increased oil, it is possible that high-oil corn contains more digestible energy (DE) and metabolizable energy (ME) than conventional hybrids, but this hypothesis has not been experimentally verified. Inclusion of microbial phytase in diets for pigs usually improves digestibility of P because phytase hydrolyzes the ester bond that binds P to the phytate molecule in corn. However, there are at this point no data for effects of adding phytase to diets containing high-oil corn and no data to demonstrate the nutritional value of high-oil corn. Therefore, an experiment was conducted to test the hypothesis that the standardized total tract digestibility (STTD) of P, as well as concentrations of DE and ME in high-oil corn are greater than in conventional corn. The second hypothesis was that inclusion of microbial phytase to diets improves the STTD of P in corn sources.

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