1Kung L Jr, Kreck E M, Tung R S, et al. Effects of a live yeast culture and enzymes onin vitroruminal fermentation and production of dairy cows[J].Jounal of Dairy Sciene, 1997, 80(9):2045-2051.
2Newbold C J, Wallace R J, McIntosh F M. Mode of action of the yeast Saccharomyces cerevisiae as a feed additive for ruminants[J]. British Journal of Nutrition, 1996,76:249-261.
3Wohlt J E, Finkelstein A D, Chung G H. Yeast cuhure to improve intake, nutrient digestibility, and performance by dairy cattle during early lactation[J]. Journal of Dairy Science, 1991, 74(4):1395- 1400.
4Necek J E, Kautz W P. Direct-fed microbial supplementation on ruminal digestion, health, and performance of pre- and postpartum dairy cattle[J]. Journal of Dairy Science,2006,89:260-266.
5Arambel M J, Kent B A. Effect of yeast culture on nutrient digestibility and milk yield response in early to midlactation dairy cows[J]. Journal of Dairy Science,1990, 73(6):1560-1563.
6北京农业大学主编.家畜饲养试验指导[M].北京:农业出版社,1992:62-63.
7金国粹,邱怀,冀一伦,等.乳牛学[M].北京:农业出版社,1988:96-97.
8Wiedmeier R D, Arambel M J, Walters J L. Effect of yeast culture and aspergillus oryzae fermentation extract on ruminal characteristics and nutrient digestibility[J]. Journal of Dairy Science, 1987, 70:2063-2068.
9Martin S A, Nesbit D J. Effect of direct-fed microbials on ruminal microbial fermentation[J]. Journal of Dairy Science,1992,75:1736- 1744.
10Song M K, Sohn H J. Effect of feeding yeast diets on lactating performance of dairy cows [J]. Korean Journal of Animal Science, 1997, 39(2):184-190.
