5Mould F,Lφrskov ER,Gauld S A. Associatove effects of mixed feeds.Ⅱ.The.effect of dietary addition of bicarbonate salts on the voluntary intake and digestibility of diets containing various proportions of hay and barley[J].Anim Feed Sci Technol,1988,(10):31-47.
6Stewart C S.Factors affrcting the cellulolytic activity of rumen contents[J].Appl Environ Microbiol,1977,33:492.
7Mould F, Gauld S A.Associatove effects of mixed feeds Ⅱ .The effect of dietary addition of bicarbonate salts on the voluntary intake and digestibility of diets containing various proportions of hay and barley [J].Anim Feed Sci Technol, 1983,10:31 ～47.
8Stewart C S.Factors affrcting the cellulolytic acticity of rumen contents[J].Appl Environ Microbiol, 1977,33:492.
