Carro et al., 1991. Anim. Prod., 52 (1): 133-139 Document reference Carro, M. D. ; Lopez, S. ; Gonzalez, J. S. ; Ovejero, F. J., 1991. The use of the rumen degradation characteristics of hay as predictors of its voluntary intake by sheep. Anim. Prod., 52 (1): 133-139Web https://doi.org/10.1017/S0003356100005766Citation key Carro et al., 1991