Vinet et al., 1980. Can. J. Anim. Sci., 60 (2): 511-521

Vinet, C. ; Bouchard, R. ; St-Laurent, G. J., 1980. Effects of stage of maturity of timothy hay and concentrate supplementation on performance of lactating dairy cows. Can. J. Anim. Sci., 60 (2): 511-521