不同营养组合对西藏中国荷斯坦杂交改良奶牛产奶量的影响  

Effects of Different Nutritional Combinations on Milk Yield of Chinese Holstein Hybrid Improved Dairy in Tibetan Area

作　　者：罗布[1] 杰布[2] 巴桑旺堆[3] 

机构地区：[1]西藏自治区农牧科学院蔬菜研究所,西藏拉萨850000 [2]西藏自治区农牧科学院农业研究所,西藏拉萨850000 [3]西藏自治区农牧科学院农业资源与环境研究所,西藏拉萨850000

出　　处：《现代畜牧兽医》2017年第6期17-21,共5页Modern Journal of Animal Husbandry and Veterinary Medicine

基　　金：西藏自治区项目"良种奶牛引进与冻精生产制作应用技术研究";西藏自治区自然基金"提高奶牛产奶量的营养调控技术研究"

摘　　要：根据体重、胎次、泌乳期等基本一致原则,选择4~6岁中国荷斯坦杂交改良奶牛共计24头,随机分为4个组,每组6头。A组饲喂全混合日粮(TMR)和青干草,B组饲喂配合饲料、青贮玉米秸秆和青干草,C组饲喂酒糟、青贮玉米秸秆和青干草,D组饲喂配合饲料、青干草和放牧自由采食,研究不同营养组合对奶牛产奶量和经济效益影响。结果发现,试验组A组、B组、C组产量量均高于对照组D组,A组、B组产奶量极显著高于对照组D组(P<0.01)。试验组A组头均纯收入均高于试验组B组、C组及对照组。结果说明,TMR结合青干草饲喂泌乳奶牛,其产奶量和经济效益明显提升。According to the principle of weight, parity, lactation and other basic principles, choose 4 to 6 years old Chinese Holstein hybrid improved dairy total of 24, were randomly divided into 4 groups, 6 each group. Group A was fed with total mixed ration（TMR） and green hay, group B was fed with feed, silage corn stalks and green hay, group C was fed with lees, silage corn stalks, and group D fed with combinative feed, green hay and grazing free feed. To study the ef- fects of different nutrient combinations on milk production and economic benefits of dairy cows. The results showed that the production of group A, group B and group C was higher than that of control group D, and the milk yield of group A and group B was significantly higher than that of control group（P〈0. 01）. The net income of group A was higher than that of group B, group C and con- trol group. The results showed that TMR combined with green hay fed lactating dairy cows, itsmilk production and economic benefits improved significantly.

关 键 词：营养 中国荷斯坦牛 产奶量 藏区 

分 类 号：S823[农业科学—畜牧学]