Stein

Addition of hydrogen chloride to collection bags or containers did not change basal endogenous losses or digestibility of amino acid in corn, soybean meal, or wheat middlings fed to growing pigs

Lee, Su A, L. Blavi, D. M. D. L. Navarro, and H. H. Stein. 2021. Addition of hydrogen chloride to collection bags or containers did not change basal endogenous losses or digestibility of amino acid in corn, soybean meal, or wheat middlings fed to growing pigs. Journal of Animal Science. 99(Suppl. 1):166-167. doi.org/10.1093/jas/skab054.281. Link to abstract.

Keywords: 
Amino acids, Hydrogen Chloride, ileal digesta
Authors: 
Lee, Blavi, Navarro, Stein
Publication Type: 
Abstracts

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: 
Research Reports

Chemical composition of cassava-based feed ingredients from South-East Asia

Cassava, also known as manioc, tapioca, or yucca, is a starchy tuber crop grown in tropical and subtropical regions. Peeled cassava is obtained after the tubers have been water-cleaned and mechanically peeled. Cassava chips are chopped cassava roots that have been sun-dried or artificially dried and can be produced in a variety of shapes and sizes. Cassava chips may be sold directly, ground into cassava meal, or pelleted.

Keywords: 
animal feeding, cassava products, Chemical composition, feed ingredient, South-East Asia
Authors: 
Fanelli, Torres-Mendoza, Abelilla, Stein
Publication Type: 
Research Reports

Apparent ileal digestibility of amino acids is not likely affected by increasing calcium from deficient to over sufficient concentration in diets fed to pigs

There are several factors related to dietary Ca that may influence digestibility of amino acids (AA). By chelating to dietary phytate, dietary Ca can form non-digestible Ca-phytate complexes, and this may result in reductions of P and AA digestibility. However, adding Ca to diets may increase activation of proteases as co-factors, which could result in increased AA digestibility. In contrast, pH in the digesta may be increased by adding Ca to diets, which likely will have a negative effect on activation of protein digesting enzymes. However, to our knowledge, no data demonstrating effects of increasing dietary Ca on digestibility of AA in pigs have been reported. Therefore, the objective of this experiment was to test the hypothesis that the concentration of Ca in diets affects apparent ileal digestibility (AID) of AA by pigs.

Keywords: 
Amino acids, Calcium, Ileal digestibility, Phosphorus
Authors: 
Lee, Stein
Publication Type: 
Research Reports

Comparative digestibility of energy, dry matter, and nutrients by gestating and lactating sows fed corn–soybean meal diets without or with full-fat or defatted rice bran

Casas, Gloria A., Maryane S.F. Oliveira, Charmaine D. Espinosa, and H.H. Stein. 2022. Comparative digestibility of energy, dry matter, and nutrients by gestating and lactating sows fed corn–soybean meal diets without or with full-fat or defatted rice bran. Can. J. Anim. Sci. 102: 401–405 (2022) dx.doi.org/10.1139/cjas-2021-0086.

Keywords: 
Digestibility, Energy, Rice bran, Lactating sows
Authors: 
Casas, Oliveira, Espinosa, Stein
Publication Type: 
Peer-reviewed journal articles

Metabolizable energy in corn is greater than in hybrid rye when fed to gestating sows, but exogenous enzymes did not increase energy digestibility

McGhee, Molly L., and Hans H. Stein. 2022. Metabolizable energy in corn is greater than in hybrid rye when fed to gestating sows, but exogenous enzymes did not increase energy digestibility. Can. J. Anim. Sci. 102: 392–395 (2022) dx.doi.org/10.1139/cjas-2021-0054. Link to full text.

Keywords: 
Corn, Energy, Enzymes, Hybrid rye, Sow
Authors: 
McGhee, Stein
Publication Type: 
Peer-reviewed journal articles

Effects of different watering options on net energy in diets fed to group-housed pigs

Depending on how facility allows pigs to drink water, considerable amounts of feeds can be wasted, which may affect digestibility of nutrients by pigs. Therefore, the objective of this experiment was to test the hypothesis that different watering options affect concentration of net energy (NE) in a corn-soybean meal diet fed to growing pigs.

Keywords: 
Group-Housed, Net energy, Watering Option
Authors: 
Lee, Rodriguez, Stein
Publication Type: 
Research Reports

Effects of different watering options on standardized ileal digestibility of amino acids in diets fed to growing pigs

Depending on how facility allows pigs to drink water, considerable amounts of feeds can be wasted, which may affect digestibility of nutrients by pigs. Therefore, the objective of this experiment was to test the hypothesis that different watering options affect the standardized ileal digestibility (SID) of amino acids (AA) in a corn-soybean meal diet fed to growing pigs.

Keywords: 
Standardized ileal digestibility, Amino acids, Growing pigs
Authors: 
Lee, Rodriguez, Stein
Publication Type: 
Research Reports

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: 
: amino acids, isoquinoline alkaloids, Pigs
Authors: 
Rundle, Artuso-Ponte, Stein
Publication Type: 
Abstracts

Nutritional Value of a New Source of Cheese Co-Product Fed to Weanling Pigs

Mallea O., A. P., M. S. F. S. Oliveira, D. A. Lopez D., H. H. Stein. 2022. Nutritional Value of a New Source of Cheese Co-Product Fed to Weanling Pigs. J. Anim. Sci. 100(Suppl. 2): 174. doi.org/10.1093/jas/skac064.296. Link to Abstr.

Keywords: 
Colostrum, Health, Lactation
Authors: 
Mallea, Oliveira, Lopez, Stein
Publication Type: 
Abstracts

Effects of Phosphorus Level and Increasing Phytase Dose on Basal Endogenous Loss of Calcium and Balance of Phosphorus in Pigs Fed Diets Containing Phytate P at Commercial Levels

Nelson, M. E., Su A Lee, Y. Dersjant-Li, D. Velayudhan, J. C. Remus, H. H. Stein. 2022. Effects of Phosphorus Level and Increasing Phytase Dose on Basal Endogenous Loss of Calcium and Balance of Phosphorus in Pigs Fed Diets Containing Phytate P at Commercial Levels. J. Anim. Sci. 100(Suppl. 2): 165–166. doi.org/10.1093/jas/skac064.282.

Keywords: 
endogenous loss of Ca, phosphorus balance, Phytase
Authors: 
Nelson, Lee, Dersjant-Li, Velayudhan, Remus, Stein
Publication Type: 
Abstracts

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.

Keywords: 
bovine plasma, Growth performance, hydrolyzed bovine plasma
Authors: 
Espinosa, Campbell, Stein
Publication Type: 
Abstracts

Optimum Concentration of Spray Dried Plasma for Maximized Growth Performance, Improved Intestinal Health, and Reduced Inflammation in Weaned Pigs Housed in a Challenged Environment

Bailey, H. M., H. H. Stein, and J. Campbell. 2022. Optimum Concentration of Spray Dried Plasma for Maximized Growth Performance, Improved Intestinal Health, and Reduced Inflammation in Weaned Pigs Housed in a Challenged Environment. J. Anim. Sci. 100(Suppl. 2): 65–66. doi.org/10.1093/jas/skac064.104. Link to Abstr.

Keywords: 
cytokines, Weanling pigs, Spray Dried Plasma
Authors: 
Bailey, Stein, Campbell
Publication Type: 
Abstracts

Inclusion of Spray Dried Plasma in Diets Based on Different Ingredient Combinations Increases the Digestibility of Energy, Fiber, Ca, and P by Young Pigs

Bailey, H. M., H. H. Stein, and J. Campbell. 2022. Inclusion of Spray Dried Plasma in Diets Based on Different Ingredient Combinations Increases the Digestibility of Energy, Fiber, Ca, and P by Young Pigs.  J. Anim. Sci. 100(Suppl. 2): 64–65. doi.org/10.1093/jas/skac064.103. Link to Abstr.

Keywords: 
additivity, apparent total tract digestibility, Spray Dried Plasma
Authors: 
Bailey, Stein, Campbell
Publication Type: 
Abstracts

Digestibility of Energy, Dry Matter, Protein, and Fat and Concentration of Metabolizable Energy in Sunflower Meal and Sunflower Expellers Fed to Growing Pigs

Ibagon, J. A., Su A Lee, and H. H. Stein. 2022. Digestibility of Energy, Dry Matter, Protein, and Fat and Concentration of Metabolizable Energy in Sunflower Meal and Sunflower Expellers Fed to Growing Pigs. J. Anim. Sci. 100 (Suppl. 2): 41–42. doi.org/10.1093/jas/skac064.064. Link to Abstr.

Keywords: 
Nutrient digestibility, pig, sunflower co-product
Authors: 
Ibagon, Lee, Stein
Publication Type: 
Abstracts

Effects of Increasing Dose of a Novel E. coli Phytase on Total Tract Digestibility of Minerals and Energy in Pigs

Lee, Su A, and H. H. Stein. 2022. Effects of Increasing Dose of a Novel E. coli Phytase on Total Tract Digestibility of Minerals and Energy in Pigs. J. Anim. Sci. 100(Suppl. 2): 36-37. doi.org/10.1093/jas/skac064.059. Link to Abstr.

Keywords: 
Digestibility, Minerals, superdosing phytase
Authors: 
Lee, Stein
Publication Type: 
Abstracts

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: 
Abstracts

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

Effects of a probiotic Bacillus strain on ileal digestibility of crude protein, dry matter, starch, energy and fat and total tract digestibility of energy and dietary fiber in diets fed to weanling pigs

Addition of probiotics to swine diets may improve gut health by modifying the microflora, which may help control pathogens, enhance immune response, and increase nutrient digestibility. Once consumed by the pig, probiotics enter the stomach where they are subjected to a low pH and pepsin. The Bacillus strain are metabolically inactive spores that are thermostable and survive at a low pH and, therefore, are thought to survive feed processing and digestion in the stomach. Addition of a Bacillus strain may enhance fermentation of dietary fiber in swine diets and, subsequently, increase the available energy from the diet in the form of volatile fatty acids. Bacillus strain also may degrade non-starch polysaccharides to reducing sugars that may serve as an energy source for the pig. A novel probiotic Bacillus toyonensis M15750 has been developed, but there are limited data to demonstrate the efficacy of this probiotic to increase nutrient digestibility. Therefore, an experiment was conducted to test the hypothesis that probiotic Bacillus toyonensis M15750 improve the apparent ileal digestibility (AID) and apparent total tract digestibility (ATTD) of energy and nutrients when included in diets fed by weanling pigs.

Keywords: 
Digestibility, Bacillus, Probiotics
Authors: 
Oliveira, Stein
Publication Type: 
Research Reports

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: 
Espinosa, Stein
Publication Type: 
Research Reports

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