1Dawson K A, Newman K E, Boling I A. Effects of microbial supplements containing yeast and lactobacilli on roughage fed ruminal microbial actives[J]. J Anim Sci, 1990, 68(3): 392-398.
2Callaway E S, Martin S A. Effects of a Saccharonyces cerevisiae culture on ruminal bacteria that utilize lactate and digest cellulose[J]. J Dairy Sci, 1997, 80: 2035-2044.
3Williams P E V, Tait C A G, Inne G M, et al. Effects of the inclusion of yeast culture(Saccharomyces cerevisiae plus growth medium) in the diet of dairy cows on milk yield and forage degradation and fermentation patterns in the rumen of steers[J]. J Anim Sci, 1991, 69: 3016-1352.
4Newbold C J, Wallace R J, McIntosh F M. Mode of action of the yeast Saccharmyces cerevisiae as a feed additive for ruminants[J]. Brit J Nutr, 1996, 76: 249-261.
5Yoon I K, Stern M D. Effects of Sacchatomyces cerevisiae and Aspergillus oryzae cultures on ruminal fermentation in diary cows [J]. J Dairy Sci, 1996, 79: 411-417.
