Swain et al., 1994. J. Dairy Sci., 77: 2318-2331 Document reference Swain, S. M. ; Armentano, L. E., 1994. Quantitative evaluation of fiber from nonforage sources used to replace alfalfa silage. J. Dairy Sci., 77: 2318-2331Web http://dx.doi.org/10.3168/jds.S0022-0302(94)77175-7Citation key Swain et al., 1994