VAN HOUTERT M.Challenging the retinal for altering VFA ratios in growing ruminates[J].Feed Mix, 1996, 4(1):8-12.
[3]
BANNINK A, FRANCE J, LOPEZ S, et al.Modelling the implications of feeding strategy on rumen fermentation and functioning of the rumen wall[J].Animal Feed Science and Technology, 2008, 143(1/2/3/4):3-26.
[4]
COMBS G F, Jr.The vitamins:fundamental aspects in nutrition and health[J].American Journal of Clinical Nutrition, 1991, 53(3):755-763.
[5]
SHAVER R D, BAL M A.Effect of dietary thiamin supplementation on milk production by dairy cows[J].Journal of Dairy Science, 2000, 83(10):2335-2340.
BECHDEL S I, HONEYWELL H E, DURCHER R A, et al.Synthesis of vitamin B in the rumen of the cow[J].Journal of Biological Chemistry, 1928, 80(1):231-238.
[10]
MILLER B L, MEISKE J C, GOODRICH R D.Effect of grain source and concentrate level on B-vitamin production and absorption in steers[J].Journal of Animal Science, 1986, 62(2):473-483.
[11]
ZINN R A, OWEN F N, STUART R L, et al.B-vitamin supplementation of diets for feedlot calves[J].Journal of Animal Science, 1987, 65(1):267-277.
PREVOT S, SENAUD J, BOHATIER J, et al.Variation in the composition of the ruminal bacterial microflora during the adaptation phase in an artificial fermentor (Rusitec)[J].Zoological Science, 1994, 11:871-878.
[14]
MUTSVANGWA T, WRIGHT, T C.Sub-acute ruminal acidosis(SARA)in dairy cows[M].Ontario:Ministry of Agriculture and Food, 2003.
