Weanling pigs

Effect of pistachio shell powder on growth performance of weanling pigs

Kim, Yeonwoo, S. A. Lee, H., Stein. 2025. Effect of pistachio shell powder on growth performance of weanling pigs. Animal - Science proceedings, Volume 16, Issue 2, P. 380. Link to abstract.

Authors: 
Publication Type: 

Effects of supplemental phytase on growth performance, blood inositol levels, and immune characteristics of weanling pigs

Mallea, A., S. A. Lee, H. Stein. 2025. Effects of supplemental phytase on growth performance, blood inositol levels, and immune characteristics of weanling pigs. Animal - Science proceedings, Volume 16, Issue 2, P. 374-375. Link to abstract.

Authors: 
Publication Type: 

Effect of Pistachio Blanks on Growth Performance of Weanling Pigs

Pistachio blanks are co-products from pistachio production and consist of unmarketable pistachio components including the hard outer shells, undersized or unripe kernels, hull fragments, and occasionally woody debris from pruning or sorting operations. As global pistachio production of pistachios increases increased quantities of pistachio byproducts are generated and interest in utilizing some of the co-products in livestock feeding has increased. Data from previous research indicated that pistachio shell powder can be utilized in diets for sows, but because pistachio shell powder and pistachio blanks are very high in fiber, the metabolizable energy in these ingredients fed to weanling pigs is expected to be less than in sows. However, weanling pigs may benefit from the insoluble dietary fiber in pistachio co-products to improve intestinal health, but there are no data to demonstrate effects of including pistachio blanks in diets for weanling pigs. Therefore, an experiment was conducted to test the null-hypothesis that pistachio blanks may be included in diets for weanling pigs without compromising pig growth performance. 

Authors: 
Publication Type: 

Tolerance of weanling pigs and effects on growth performance of supplementing corn-soybean mealbased diets with graded levels of a novel exogenous β-mannanase

Acosta, Jessica P., Su A Lee, Anna Fickler, and Hans H. Stein. 2025. Tolerance of weanling pigs and effects on growth performance of supplementing corn-soybean mealbased diets with graded levels of a novel exogenous β-mannanase. Translational Animal Science, 9, txaf061. doi.org/10.1093/tas/txaf061 Link to full text.

Authors: 

Nitrogen retention was not different in pigs fed diets supplemented with 65 parts of DL-Methionine or 100 parts of MHA-Ca

Acosta, Jessica P., S. Maria S. Mendoza, John K. Htoo, Hans H. Stein. 2025. Nitrogen retention was not different in pigs fed diets supplemented with 65 parts of DL-Methionine or 100 parts of MHA-Ca. Journal of Animal Science, Volume 103, Issue Supplement_1, May 2025, Pages 99–100, doi.org/10.1093/jas/skaf102.107 Link to abstract.

Authors: 
Publication Type: 

Effects of spray dried plasma on litter growth performance and oxidative stress and inflammation of sows kept in a hot environment

Bailey, Hannah M., Natalia S. Fanelli, Joy M. Campbell and Hans H. Stein. 2025. Effects of spray dried plasma on litter growth performance and oxidative stress and inflammation of sows kept in a hot environment. Journal of Animal Science and Biotechnology (2025) 16:13. doi.org/10.1186/s40104-024-01139-9 Link to full text.

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.

Effects of xylanase or a stimbiotic on growth performance and total tract digestibility of nutrients by pigs weaned from sows fed a lactation diet without or with xylanase

Acosta, Jessica P., Gemma Gonzalez Ortiz, Hans H. Stein. 2024. Effects of xylanase or a stimbiotic on growth performance and total tract digestibility of nutrients by pigs weaned from sows fed a lactation diet without or with xylanase. J. Anim. Sci Vol. 102, Suppl. S2. P 87 - 88. doi.org/10.1093/jas/skae102.099 Link to abstract.

Publication Type: 

What impact does a Stimbiotic have on digestibility when fed to weanling pigs

Acosta, J. P., and H. H. Stein. 2024. What impact does a Stimbiotic have on digestibility when fed to weanling pigs. National Hog Farmer. On-line edition. May 30, 2024. Link to full text.

Authors: 

Supplementation of Valine, Isoleucine, and Tryptophan may overcome the negative effects of dietary excess Leucine in corn protein when fed to weanling pigs. 

Mallea, Andrea P., and Hans H. Stein. 2023. Supplementation of Valine, Isoleucine, and Tryptophan may overcome the negative effects of dietary excess Leucine in corn protein when fed to weanling pigs. XXXVIII Curso de especializacion FEDNA. Pag 329. Link to abstract.

Authors: 
Publication Type: 

Xylanase or a stimbiotic increased growth performance and total tract digestibility of nutrients in diets for weanling pigs, but feeding sows xylanase in lactation did not influence pig growth performance after weaning

Acosta, Jessica P., and Hans H. Stein. 2023. Xylanase or a stimbiotic increased growth performance and total tract digestibility of nutrients in diets for weanling pigs, but feeding sows xylanase in lactation did not influence pig growth performance after weaning. XXXVIII Curso de especializacion FEDNA. Pag 327. Link to abstract.

 

Authors: 
Publication Type: 

Xylanase and a stimbiotic increased growth performance and total tract digestibility of nutrients in diets for weanling pigs, but feeding sows xylanase in lactation did not influence pig growth performance

Arabinoxylans are the predominant fiber component in cereal grains and cereal co-products. They have a backbone of β-(1− 4) linked xylose units with side chains of arabinose, glucuronic acid, acetyl, and phenolic acids. Xylanase hydrolyzes the β-(1− 4) glycosidic bonds between xylose units in the backbone and releases a mixture of xylose and xylo-oligosaccharides that can be either absorbed or fermented by pigs. Previous data indicate that xylanase increased the degradation of dietary fiber and increased energy digestibility in diets for growing pigs and lactating sows. Xylo-oligosaccharides improve growth performance of nursery pigs because they serve as prebiotics that modulate gut microbiota. A stimbiotic (i.e., xylanase in combination with xylo-oligosaccharides) may improve growth performance of weanling pigs to a greater extent than either additive alone by shifting the intestinal microbiome to favor fiber fermentation. However, there are no data on possible effects of xylanase in sows diets on growth performance and intestinal health of the offspring or on the impact of the stimbiotic on digestibility of nutrients when fed to nursery pigs. Therefore, an experiment was conducted to test the hypothesis that xylanase or a stimbiotic improves growth performance and the apparent total tract digestibility (ATTD) of dry matter (DM), gross energy (GE), and total dietary fiber (TDF), and the concentration of digestible energy (DE) of diets for weanling pigs, but that the effect is greater in offspring of sows fed xylanase in lactation than in offspring of sows not fed xylanase.

Publication Type: 

Supplementation of Valine, Isoleucine, and Tryptophan may overcome the negative effects of dietary excess Leucine in corn protein when fed to weanling pigs

High protein corn protein (HPCP) is a corn co-product derived from the ethanol industry that contains between 40 and 50% crude protein, and therefore, may be used in diets for pigs as a source of amino acids (AA). However, such diets will contain more than twice as much Leu as recommended and there is a negative relationship between dietary Leu and brain synthesis of serotonin, which results in reduced feed intake of pigs fed diets containing excess Leu. There is also a reduced protein synthesis because of increased Val and Ile metabolism due to excess dietary Leu. As a consequence, pigs often have reduced growth performance if fed diets with high concentrations of HPCP. However, it may be possible to counteract the negative effects of the high Leu concentrations in corn co-products by adding crystalline sources of Trp, Val, and Ile to the diets and it may, therefore, be possible that HPCP can be used in diets without influencing growth performance or intestinal health of weanling pigs. Therefore, the hypothesis that HPCP may be used as the primary source of AA in diets for weanling pigs if diets are fortified with crystalline AA was tested. 

Authors: 
Publication Type: 

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.

Authors: 

Direct fed microbials increase energy and nutrient digestibility

Oliveira, M. S., and H. H. Stein. 2022. Direct fed microbials increase energy and nutrient digestibility. National Hog Farmer, On-line edition, Sep. 24, 2022. Link to full text.

Authors: 

The combination of spray dried plasma and reduced crude protein in diets decreases circulating cytokines of weanling pigs

Bailey, H., J. Campbell, and H. H. Stein. 2022. The combination of spray dried plasma and reduced crude protein in diets decreases circulating cytokines of weanling pigs. 15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 214. Link to abstract.

Authors: 
Publication Type: 

Isoquinoline alkaloids impact intestinal health and function of weanling pigs fed diets formulated below amino acid requirements

Rundle, C., V. Artuso-Ponte, and H. H. Stein. 2022. Isoquinoline alkaloids impact intestinal health and function of weanling pigs fed diets formulated below amino acid requirements. 15th International Symposium on Digestive Physiology of Pigs. Animal - Science Proceedings 13(Issue 2): 176. Link to Abstract.

Publication Type: 

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.

Authors: 
Publication Type: 

Digestibility of energy and concentrations of digestible and metabolizable energy in three sources of corn protein fed to weanling pigs

Corn coproducts produced from the fuel ethanol or the wet milling industries may be used in diets for pigs. Different technologies are used to develop high protein corn co-products, but in addition to providing amino acids to the diets, high protein corn co-products also provide energy to the diets. The energy concentrations in corn protein may depend on the concentrations of fat, carbohydrates, and protein in sources of corn protein. Newly developed corn proteins contain 40 to 50% crude protein. There are, however, limited data on how differences in the chemical composition of different sources of corn protein influence the concentrations of digestible energy (DE) and metabolizable energy (ME) when fed to weanling pigs. Therefore, the objective of this experiment was to test the null hypothesis that there is no difference in the apparent total tract digestibility (ATTD) of gross energy (GE) and concentrations of DE and ME among 3 sources of corn protein when fed to weanling pigs.

Authors: 
Publication Type: 

Pages