Field peas

Standardized total tract digestibility of phosphorus in three different sources of field peas (Pisum sativum L.) with different particle sizes fed to weanling pigs

Field peas have been produced mainly for human consumption, but lastly, the industry has been included in diets fed to livestock due to its content of starch and protein. In diets for swine, only peas that are harvested at maturity are used. Almost 80% of P in non-oilseed legumes is bound to phytate, and pigs do not synthesize an adequate amount of endogenous phytate to liberate the P bound to phytate. Therefore, the digestibility of P in field peas is relatively low. Values for apparent total tract digestibility (ATTD) and standardized total tract digestibility (STTD) of P in field peas have been reported, but there are no comparative values for the ATTD and STTD of P among different varieties of field peas at different particle sizes. Therefore, the objective of this experiment was to test the hypothesis that there are no differences in the ATTD and the STTD of P among different sources of field peas fed to young pigs and the second hypothesis was that there is a linear increase in the ATTD and STTD of P as the particle size of field peas increases.

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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.

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Amino acid digestibility in field peas, fish meal, corn, soybean meal, and soybean hulls

Mathai, J. K. and H. H. Stein. 2014. Amino acid digestibility in field peas, fish meal, corn, soybean meal, and soybean hulls. J. Anim. Sci 92(E-Suppl. 2):648 (Abstr.) Link to abstract (.pdf)

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Coefficient of standardized ileal digestibility of amino acids in corn, soybean meal, corn gluten meal, high-protein distillers dried grains, and field peas fed to weanling pigs (Short communication)

Petersen, G. I., Y. Liu, and H. H. Stein. 2014. Coefficient of standardized ileal digestibility of amino acids in corn, soybean meal, corn gluten meal, high-protein distillers dried grains, and field peas fed to weanling pigs (Short communication). Anim. Feed Sci. Technol. 188:145-149. Link to full text (.pdf)

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Effects of replacing soybean meal with pea chips and distillers dried grains with solubles in diets fed to growing-finishing pigs on growth performance, carcass quality, and pork palatability

Harris, E. K., E. P. Berg, T. C. Gilbery, A. N. Lepper, H. H. Stein, and D. J. Newman. 2012. Effects of replacing soybean meal with pea chips and distillers dried grains with solubles in diets fed to growing-finishing pigs on growth performance, carcass quality, and pork palatability. Prof. Anim. Sci. 28:1-10. Link to full text (.pdf)

Effects of pea chips on pig performance, carcass quality and composition, and palatability of pork

Newman, D. J., E. K. Harris, A. N. Lepper, E. P. Berg, and H. H. Stein. 2011. Effects of pea chips on pig performance, carcass quality and composition, and palatability of pork. J. Anim. Sci. 89:3132-3139. Link to full text (.pdf)

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Materias primas alternativas en nutrición porcina: 1. Guisantes de campo

Stein, H. H. 2010. Materias primas alternativas en nutrición porcina: 1. Guisantes de campo. Pages 32-40 in Suis, November 2010. Link to full text (.pdf)

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Energy and nutrient concentration and digestibility in alternative feed ingredients and recommended inclusion rates

Stein, H. H. 2011. Energy and nutrient concentration and digestibility in alternative feed ingredients and recommended inclusion rates. In Proceedings of the American Association of Swine Veterinarians 42nd Annual Meeting. Phoenix, AZ. Link to full text (.pdf)

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Effects of including raw or extruded field peas (Pisum sativum L.) in diets fed to weanling pigs

Stein, H. H., D. N. Peters, and B. G. Kim. 2010. Effects of including raw or extruded field peas (Pisum sativum L.) in diets fed to weanling pigs. J. Sci. Food Agric. 90:1429-1436. Link to full text (.pdf)

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Effects of including field peas in diets fed to weanling pigs

Stein, H. H., and D. N. Peters. 2008. Effects of including field peas in diets fed to weanling pigs. J. Anim. Sci. 86(E-Suppl. 2):448 (Abstr.) Link to abstract (.pdf)

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Digestibility of phosphorus in field peas by growing pigs

Geraets, L. L., M. G. Boersma, and H. H. Stein. 2006. Digestibility of phosphorus in field peas by growing pigs. J. Anim. Sci. 84 (Suppl. 2):116 (Abstr.) Link to abstract (.pdf)

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Feeding field peas to market pigs had minimal effects on carcass composition, meat quality or cooked pork palatability

Everts, A., H. H. Stein, D. Peters, C. Pedersen, K. Sweeter, D. Wulf, and R. Maddock. 2005. Feeding field peas to market pigs had minimal effects on carcass composition, meat quality or cooked pork palatability. Pages 12-13 in Proc. 51st Intl. Cong. Meat Sci. Technol., Baltimore, Maryland, USA, August 7-12, 2005 (Abstr.) Link to abstract (.pdf)

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Assessment of the feeding value of South Dakota grown field peas for growing pigs

Stein, H. H., R. A. Bohlke, V. Rayadurg, D. Peters, and R. C. Thaler. 2002. Assessment of the feeding value of South Dakota grown field peas for growing pigs. J. Anim. Sci. 80(Suppl. 2):63 (Abstr.) Link to abstract (.pdf)

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Alternative grain sources in diets fed to pigs

Stein, H. H. 2009. Alternative grain sources in diets fed to pigs. Pages 163-179 in Proc. Retos Y Elternativas Para La Production Animal Tropical. Ensminger School, February 11-13, 2009, San Jose, Costa Rica. Link to full text (.pdf)

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Formulating diets to reproducing and growing pigs using field peas

Stein, H. H. 2006. Formulating diets to reproducing and growing pigs using field peas. P 43-49 in Proc. 2nd joint meeting of the MPA of ND and NDPC. Fargo, ND, November 28-29, 2006. Link to full text (.pdf)

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Swine digestibility of energy and nutrients in field peas

Stein, H. H. 2006. Swine digestibility of energy and nutrients in field peas. P. 38-42 in Proc. 2nd joint meeting of the MPA of ND and NDPC. Fargo, ND, November 28-29, 2006.  Link to full text (.pdf)

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Feeding field peas to market pigs had only minimal effects on carcass composition, meat quality, or cooked pork palatability

Everts, A. K. R., H. H. Stein, D. N. Peters, C. Pedersen, K. K. Sweeter, D. M. Wulf, and R. J. Maddock. 2005. Feeding field peas to market pigs had only minimal effects on carcass composition, meat quality, or cooked pork palatability.  Proc. 51st Intl. Congress of Meat Science and Technology. Aug. 7-12. Baltimore MD.

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Field peas in diets fed to swine

Stein. H. H. 2006. Field peas in diets fed to swine. Extension Bulletin. South Dakota State University. Link to full text (.pdf)

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Using South Dakota grown field peas in swine diets

Thaler, R. A., and H. H. Stein. 2003. Using South Dakota grown field peas in swine diets. Extension Extra 2041, South Dakota State University. Link to full text (.pdf)

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