Supplementation of maize silage or mixed forage (maize and grass silage) based rations with rumen protected methionine for dairy cows P. Brunschwig, P. Augeard, B. Sloan and K. TananAnn. Zootech., 44 Suppl. 1 (1995) 380DOI: https://doi.org/10.1051/animres:199505340