Lactating sows

Standardized total tract digestibility of phosphorus in canola meal fed to gestating or lactating sows without or with a multi-enzyme complex

Velayudhan, Deepak E., Manik M. Hossain, Jinyoung Lee, Hans H. Stein, Charles Martin Nyachoti. 2024. Standardized total tract digestibility of phosphorus in canola meal fed to gestating or lactating sows without or with a multi-enzyme complex. Animal Feed Science and Technology 316 (2024) 116068. doi.org/10.1016/j.anifeedsci.2024.116068.

Keywords: 
Canola meal, Digestibility, gestating sows, Lactating sows, Phosphorus
Authors: 
Velayudhan, Hossain, Lee, Stein, Nyachoti
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

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

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

Swine Nutrition

Stein, H. H. 2020. Swine Nutrition. Feedstuffs Reference Issue & Nutritional Guide. P. 35-40. Link to full text

Keywords: 
Nutrition, Amino acids, gestating sows, Lactating sows
Authors: 
Stein
Publication Type: 
Extension Reports and other non-refereed publications

Standardized ileal digestibility of amino acids in canola meal fed to gestating and lactating sows

Velayudhan, Deepak Ettungapladi , Manik M. Hossain, Hans H. Stein, and C. Martin Nyachoti. 2019. Standardized ileal digestibility of amino acids in canola meal fed to gestating and lactating sows. Journal of Animal Science, 2019, 4219–4226. Link to full text.

Keywords: 
Amino acids, Canola meal, Digestibility, gestating sows, Lactating sows
Authors: 
Velayudhan, Hossain, Stein, Nyachoti
Publication Type: 
Peer-reviewed journal articles

Canola meal produced from high-protein or conventional varieties of canola seeds may substitute soybean meal in diets for gestating and lactating sows without compromising sow or litter productivity

Yanhong Liu, Maryane S. F. Oliveira, Hans H Stein, 2018. Canola meal produced from high-protein or conventional varieties of canola seeds may substitute soybean meal in diets for gestating and lactating sows without compromising sow or litter productivity. Journal of Animal Science: 96:12, 5179–5187. Link full text.

Keywords: 
Canola meal, Soybean meal, gestating sows, Lactating sows
Authors: 
Yanhong, Oliveira, Stein
Publication Type: 
Peer-reviewed journal articles

Productivity of sows fed diets containing canola meal produced from high protein or conventional varieties of canola seeds during gestation and lactation

Canola meal is second only to soybean meal as a protein source used in animal diets. However, the digestibility of amino acids and digestible energy is lower in canola meal than in soybean meal because of the high concentration of fiber in canola meal. The high fiber content and the presence of glucosinolates limit inclusion of canola meal in diets fed to pigs.

Research on using canola meal in pig diets at different stages has indicated that it can be used in gestation diets without limitation and 15 to 20% may be included in lactation diets. However, at least one study indicated that including canola meal in gestating and lactation diets reduced the number of pigs born alive and the number of pigs weaned, and also reduced lactation feed intake and litter weaning weight.

New canola varieties have been developed that yield meal with more protein and less fiber compared with conventional canola meal (CM-CV). The objectives of this research were to determine the effects of feeding diets containing high protein canola meal (CM-HP) or CM-CV to sows during gestation and lactation, and to determine the optimum inclusion rates of CM-HP and CM-CV in gestation and lactation diets.

Keywords: 
High protein canola meal, Canola meal, Gestation, Lactating sows
Authors: 
Liu, Stein
Publication Type: 
Research Reports

Nucleotides in sows' colostrum and milk at different stages of lactation

Mateo, C. D., D. N. Peters, and H. H. Stein. 2003. Nucleotides in sows' colostrum and milk at different stages of lactation. J. Anim. Sci.81(Suppl. 1):16 (Abstr.) Link to abstract (.pdf)

Keywords: 
Lactation, Lactating sows, Colostrum, Milk, Nucleotides
Authors: 
Mateo, Peters, Stein
Publication Type: 
Abstracts

Effect of stage of lactation on colostrum and milk composition in multiparous sows

Mateo, C. D., H. H. Stein, M. R. Smiricky-Tjardes, and D. N. Peters. 2003. Effect of stage of lactation on colostrum and milk composition in multiparous sows. J. Anim. Sci. 81(Suppl. 2):67 (Abstr.) Link to abstract (.pdf)

Keywords: 
Sows, Lactation, Lactating sows, Colostrum, Milk, Total milk solids, Nitrogen
Authors: 
Smiricky-Tjardes, Mateo, Peters, Stein
Publication Type: 
Abstracts

Effect of litter size and day of lactation on amino acid uptake by the porcine mammary glands

Nielsen, T. T., N. L. Trottier, H. H. Stein, C. Bellaver, and R. A. Easter. 2002. Effect of litter size and day of lactation on amino acid uptake by the porcine mammary glands. J. Anim. Sci. 80(Suppl. 1):131 (Abstr.)

Keywords: 
Amino acids, Lactation, Mammary glands, Lactating sows, Litter size
Authors: 
Easter, Bellaver, Nielsen, Stein, Trottier
Publication Type: 
Abstracts

Effect of litter size on mammary gland amino acid uptake in lactating sows

Nielsen, T. T., N. L. Trottier, C. Bellaver, H. H. Stein, and R. A. Easter. 1996. Effect of litter size on mammary gland amino acid uptake in lactating sows. Livestock Prod. Sci. 50:167-168 (Abstr.) Link to abstract (.pdf)

Keywords: 
Amino acids, Lactation, Mammary glands, Lactating sows, Amino acid uptake
Authors: 
Easter, Bellaver, Nielsen, Stein, Trottier
Publication Type: 
Abstracts

Endogenous secretions of proteins and amino acids in pregnant and lactating sows

Stein, H. H. and R. A. Easter, 1997. Endogenous secretions of proteins and amino acids in pregnant and lactating sows. In: J. P. LaPlace, C. Fevrier, and A. Barbeau (ED). Digestive physiology in pigs. EAAP publ. No 88. p. 321-324. St. Malo, France.  Link to full text (.pdf)

Keywords: 
Sows, Protein, Amino acids, Endogenous protein, Lactation, Lactating sows, Endogenous losses, Gestation
Authors: 
Easter, Stein
Publication Type: 
Conference proceedings

Amino acid requirements in lactating sows

Stein, H. H. 1996. Amino acid requirements in lactating sows. A review. In: University of Illinois Swine Research Reports, p. 32. Link to full text (.pdf)

Keywords: 
Sows, Amino acids, Lactation, Lactating sows
Authors: 
Stein
Publication Type: 
Extension Reports and other non-refereed publications

A nonlinear model for mammary gland growth and regression in lactating sows

Kim, S. W., M. Grossman, H. H. Stein, and R. A. Easter. 2000. A nonlinear model for mammary gland growth and regression in lactating sows. Growth Dev. Aging 64:71-81. Link to abstract

Keywords: 
Sows, Lactation, Mammary glands, Lactating sows
Authors: 
Easter, Kim, Grossman, Stein
Publication Type: 
Peer-reviewed journal articles