复方中草药添加剂对奶牛生产性能的影响

目的 研究基础日粮中添加不同含量复方中草药添加剂对奶牛生产性能的影响。方法 本试验选取体重接近、胎次相同、体况良好的荷斯坦牛60 头,随机分为4 组,每组15 头,对照组饲喂基础日粮,试验I组、II组、III组在基础日粮中分别添加复方中草药添加剂200 g/d·头,250 g/d·头,300 g/d·头,试验期为30 d。结果 与对照组相比,日粮中添加250 g/d·头的复方中草药添加剂显著降低了牛奶中的乳脂率和体细胞数（P<0.05）,显著提高了奶牛的采食量、产奶量和牛奶中的乳蛋白率（P<0.05）。结论 日粮中添加250 g/d·头的复方中草药剂作为饲料添加剂,可以提高奶牛的生产性能及奶牛场的经济效益。

Effects of Compound Chinese Herbal Medicine Additive on Performance of Dairy Cows

Objective] To study the effects of different contents of compound Chinese herbal medicine additives on the performance of dairy cows. Method] Sixty Holstein cows with similar body weight,same parity and good body condition were randomly divided into 4 groups,each group has 15 cows. The control group was fed the basal diet,and the experimental groups I,II and III were fed the basal diet supplemented with compound Chinese herbal medicine additive 200 g/d·h,250 g/d·h,300 g/d·h,respectively. The experiment lasted for 30 days. Result] Compared with the control group, the supplementation of 250 g/d·h compound Chinese herbal medicine additive significantly decreased the milk fat percentage and somatic cell number in milk, and compared with the control group, the supplementation of 250 g/d·h compound Chinese herbal medicine additive significantly decreased the milk fat percentage and somatic cell number in milk（P<0.05）,significantly increased the feed intake,milk yield and milk protein percentage of milk（P<0.05）.Conclusion] 250 g/d·h compound Chinese herbal medicine can be added to the diet as feed additives to improve the performance of dairy cows and economic benefits of dairy farms.