Van Kempen, T.A.T.G., I.B. Kim, A.J.M. Jansman, M.W.A. Verstagen, J.D. Hancock, D.J. Lee, V.M. Gabert, D.M. Albin, G.C. Fahey, Jr., C.M. Grieshop, and D. Mahan. 2002. Regional and processor variation in the ileal digestible amino acid content of soybean meals measured in growing swine. J. Anim. Sci. 80:429-439. Link to full text (.pdf)

Take home message:

• Soybean meal collected in the U.S. varied little in nutrient content and digestibilities.
• Soybean meal collected in the Netherlands was more variable and had lower amino acid concentrations than that collected in the U.S.