Long R J, Dong S K, Shi J J, et al. Digestive and metabolic characteristics of lactating yaks fed different diets. Yak Production in Central Asian Highlands-Proceedings of the Second International Congress on Yak. Xining, 1997: 124-126.
[2]
Dong S K, Dong Q M, Long R J, et al. Effects of feeding level on energy and nitrogen metabolish of dry, non-pregnant yaks. Yak Production in Central Asian Highlands-Proceedings of the Second International Congress on Yak. Xining, 1997: 117-120.
Long R J, Dong S K, Hu Z Z, et al. Digestibility, nutrient balance and urinary purine derivative excretion in dry cows fed oat hay at different levels of intake. Livestock Production Science, 2004, 88: 27-32.
[5]
Gardner R W. Digestible protein requirements of calves fed high energy rations ad libitum. Journal of Dairy Science, 1968,51: 888-897.
Dong Q M, Zhao X Q, Ma Y S, et al. Live-weight gain, apparent digestibility, and economic benefits of yaks fed different diets during winter on the tibetan plateau. Livestock Science, 2006, 101: 199-207.
Levy D, Bar-Tsur A, Holzer Z, et al. High grain content maize silage in fattening diets of young male cattle. Animal Feed Science and Technology, 1986, 16(1-2): 63-73.
[16]
Rule D C, Preston R L, Koes R M, et al. Feeding value of sprouted wheat (Triticum aestivum) for beef cattle finishing diets. Animal Feed Science and Technology, 1986, 15(2): 113-121.
[17]
Huhtanen P. The effects of barley, unmolassed sugar-beet pulp and molasses supplements on organic matter, nitrogen and fibre digestion in the rumen of cattle given a silage diet. Animal Feed Science and Technology, 1988, 20(4): 259-278.
[18]
Elizalde J C, Santini F J, Pasinato A M. The effect of stage of harvest on the process of digestion in cattle fed winter oats indoors. Ⅱ. Nitrogen digestion and microbial protein synthesis. Animal Feed Science and Technology, 1996, 63(1-4): 245-255.
[19]
Hussain I, Cheeke P R. Evaluation of annual ryegrass straw: corn juice silage with cattle and water buffalo: digestibility in cattle vs. buffalo, and growth performance and subsequent lactational performance of Holstein heifers. Animal Feed Science and Technology, 1996, 57(3): 195-202.
[20]
Mulligan F J, Caffrey P J, Rath M, et al. An investigation of feeding level effects on digestibility in cattle for diets based on grass silage and high fibre concentrates at two forage: concentrate ratios. Livestock Production Science, 2002, 77(2-3): 311-323.
[21]
Shane G M, Beck P A, Kellogg W D, et al. Digestion characteristics and growth of steers fed a corn-grain based supplement compared to a deoiled rice bran plus cottonseed supplement with or without extrusion processing. Animal Feed Science and Technology, 2005, 118: 267-277.
