3Limg Ljr.Kreck EM,Tung RS,et al.Effects of a live yeast culture and enzymes on in vitro ruminal fermentation and production of diary cows[J].J Diry Sci,1997,80:2045-2051.
5Kung LJr,Kreck EM,Tung RS,et al.Effects of a live yeast culture and enzymes on in vitro ruminal fermentation and production of dairy cows[J].J Dairy Sci,1997,80:2045-2051.
6Newbold,CJ,Wallace RJ,McIntosh FM.Mode of action of the yeas Sacharomyces cerevisiae as a feed additive for ruminants[J].Brit J Nutr,1996,76:249.
7Wohlt JE,Finkelstein AD,Chung CH.Yeast culture to improve intake,nutrient digestibility,and performance by dairy cattle during early lactation[J].J,Dairy Sci,1991,74:1395.