Acosta

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

Weanling pigs consume more feed if hybrid rye replaces corn in diets, but average daily gain and fecal scores are not impacted by hybrid rye

McGhee, Molly L., Jessica P. Acosta, and Hans H. Stein. 2023. Weanling pigs consume more feed if hybrid rye replaces corn in diets, but average daily gain and fecal scores are not impacted by hybrid rye. Translational Animal Science, 7: 1–10. doi.org/10.1093/tas/txad022. Link to full text.

Keywords: 
cereal grains, Corn, Growth performance, Hybrid rye, Weanling pigs
Authors: 
McGhee, Acosta, Stein
Publication Type: 
Peer-reviewed journal articles

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.

Keywords: 
Amino acid digestibility, corn protein, Distillers dried grains with solubles, Energy digestibility, Growth performance, Pigs
Authors: 
Acosta, Espinosa, Jaworski, Stein
Publication Type: 
Peer-reviewed journal articles

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.

Keywords: 
corn protein, Amino acids, Energy, Low-oil DDG, Weanling pigs
Authors: 
Acosta, Espinosa, Jaworski, Stein.
Publication Type: 
Abstracts

Digestibility of energy and concentrations of digestible and metabolizable energy in a high protein corn product fed to growing pigs

A new source of corn protein (NexPro) that is produced from the ethanol industry has been developed by Flint Hills Resources (Wichita, KS). NexPro contains approximately 50% crude protein and the digestibility of amino acids was reported in our November, 2020, Newsletter. However, there is at this time no information about the concentration of digestible energy (DE) and metabolizable energy (ME) in this new source of protein. Therefore, the objective of this experiment was to test the hypothesis that concentrations of DE and ME in corn protein are greater than in 2 sources of distillers dried grains with solubles (DDGS; i.e., DDGS-1 and DDGS-2) when fed to growing pigs.

Keywords: 
corn protein, Digestibility, Distillers dried grains with solubles, Energy, Pigs
Authors: 
Acosta, Espinosa, Jaworski, Stein
Publication Type: 
Research Reports

Espinosa, C. D., J. P. Acosta, and H. H. Stein. 2020. Growth performance not sacrificed with corn protein. National Hog Farmer, On-line edition, October, 2020.

Espinosa, C. D., J. P. Acosta, and H. H. Stein. 2020. Growth performance not sacrificed with corn protein. National Hog Farmer, On-line edition, October, 2020. Link to full text.

Keywords: 
Growth performance, Pigs, Corn
Authors: 
Espinosa, Acosta, Stein
Publication Type: 
Extension Reports and other non-refereed publications

Digestibility of amino acids in a high protein corn product fed to growing pigs

Corn coproducts produced from the ethanol industry are often used in diets for pigs. A new source of corn protein (NexPro; Flint Hills Resources, Wichita, KS) has been developed, but at this time there is limited information about the nutritional value of this new source of corn protein. Therefore, the objective of this experiment was to test the hypothesis that the standardized ileal digestibility (SID) of amino acids  in corn protein is greater than in 2 sources of distillers dried grains with solubles (DDGS; i.e., DDGS-1 and DDGS-2) when fed to growing pigs.

Keywords: 
Amino acids, corn protein, Digestibility, Distillers dried grains with solubles, Pigs
Authors: 
Acosta, Espinosa, Jaworski, Stein
Publication Type: 
Research Reports

A new source of high-protein distillers dried grains with solubles (DDGS) has greater digestibility of amino acids and energy, but less digestibility of phosphorus, than de-oiled DDGS when fed to growing pigs

Cristobal, Minoy, Jessica P. Acosta, Su A Lee, and Hans H. Stein. 2020. A new source of high-protein distillers dried grains with solubles (DDGS) has greater digestibility of amino acids and energy, but less digestibility of phosphorus, than de-oiled DDGS when fed to growing pigs. Journal of Animal Science, 2020, Vol. 98, No. 7, 1–9. doi:10.1093/jas/skaa200.

Keywords: 
Amino acids, Digestibility, Distillers dried grains with solubles, Energy, Phosphorus, pig
Authors: 
Cristobal, Acosta, Lee, Stein
Publication Type: 
Peer-reviewed journal articles

Impact of increasing the levels of insoluble fiber and on the method of diet formulation measures of energy and nutrient digestibility in growing pigs

Acosta, Jesus A., Hans H. Stein, and John F. Patience. 2020. Impact of increasing the levels of insoluble fiber and on the method of diet formulation measures of energy and nutrient digestibility in growing pigs. Journal of Animal Science, 2020, 1–9. doi:10.1093/jas/skaa130. Link to full text.

Keywords: 
Amino acids, ileal-cannulation, Insoluble fiber, Soluble fiber, Starch, swine
Authors: 
Acosta, Stein, Patience
Publication Type: 
Peer-reviewed journal articles

Effect of NexPro (high-protein corn) on growth performance of weanling pigs

NexPro is a high protein feed ingredient that is generated via downstream processing of co-products from the dry-grind ethanol industry. Results from digestibility experiments indicate that NexPro contribute considerable quantities of amino acids and energy to diets fed to pigs, but there are no data demonstrating effects on growth performance of including NexPro in diets for weanling pigs. Therefore, an experiment was conducted to test the hypothesis that NexPro may replace other high-value protein sources in diets for weanling pigs without impacting pig growth performance.

Keywords: 
Fecal score, Growth performance, high-protein corn, NexPro, Pigs
Authors: 
Acosta, Espinosa, Stein
Publication Type: 
Research Reports

Digestibility of amino acids in a new source of distillers dried grains with solubles fed to growing pigs

Distillers dried grains with solubles (DDGS) is a co-product from the dry-grind ethanol production. However, quality and nutrient content of DDGS may differ among sources and origins and new technologies allow for production of DDGS with different chemical compositions as well as nutritional values. Recently a high-protein distillers dried grains (HP-DDG; ProCap DDGS, Marquis Energy, Hennepin, IL) was introduced and the HP-DDG has greater concentrations of CP and fat, but contains less fiber compared with conventional DDGS, which may affect the digestibility of AA in HP-DDG compared with conventional DDGS. There are, however, no data for the digestibility of AA in this new source of DDGS. Therefore, the objective of this research was to test the hypothesis that standardized ileal digestibility (SID) of AA in HP-DDG is greater than in conventional DDGS when fed to growing pigs.

Keywords: 
Amino acid digestibility, Distillers dried grains with solubles
Authors: 
Acosta, LeeSA, Stein
Publication Type: 
Research Reports