Van Dijk et al., 1982. J. Dairy Sci., 66: 2521-2525 Document reference Van Dijk, H. J. ; O'Dell, G. D. ; Perry, P. R. ; Grimes, L. W., 1982. Extruded versus raw ground soybeans for dairy cows in early lactations. J. Dairy Sci., 66: 2521-2525Web https://doi.org/10.3168/jds.S0022-0302(83)82121-3Citation key Van Dijk et al., 1982