2Allen D M,Grant R J.Interactions between forage and wet corn gluten feed assource of fibrein diets for lactating dairy cows[J].J Dairy Sci,2000,83:322-331.
6Maekawa M,Beauchemin K A,Christensen D A.Effect of concentrate level and feeding management on chewing activities,saliva production,and ruminal p H of lactating dairy cows[J].J Dairy Sci,2002,85(5):1165-1175.
7Ramanzin M,Bailoni L,Schiavon S,et al.Effect of monensin on milk production and efficiency of dairy cows fed two diets differing in forage to concentrate ratios[J].J Dairy Sci,1997,80(6):1136-1142.