8Fulton W R,Klopfenstein T J,Britton R A.Adaptat ion to high concentrate diets by beef cattle, Ⅱ.Effect of ruminal pH alteration on rumen fermentation and voluntary intake of wheat diets[J].J Anim Sci, 1979,49:785-789.
9Galyean M L,Malcolm-Callis K J,Garcia D R,et al.Effects of varyingthe pattern of feed comumption on performance by programmed-fed beef steers[A].Livestock Research Briefs and Cattle Growers Short Course[C].New Mexico State University, 1993.110 - 111.
10Kung L Jr, Hession A O.Preventing in vitro lactate accumulation in ruminal fermentations by inoculation with Megasphaera elsdenii [J].J Anim Sci,1995,73 : 250 - 256.
