不同剂量过瘤胃氯化胆碱对围产期奶牛生产性能及血液生化指标的影响研究  

Study on the Effects of Different Doses of Per Rumen Choline Chloride on the Performance and Blood Biochemical Indexes of Periparturient Dairy Cows

作　　者：王西耀 韩增霞 林清香 WANG Xiyao;HAN Zengxia;LIN Qingxiang(Yinan County Animal Disease Prevention and Control Centre,Linyi Shandong 276300;Bureau of Agriculture and Rural Development,Yinan County,Linyi Shandong 276300)

机构地区：[1]沂南县动物疫病预防控制中心,山东临沂276300 [2]山东省沂南县农业农村局,山东临沂276300

出　　处：《中国乳业》2024年第6期25-30,共6页China Dairy

摘　　要：[目的]为了探索不同剂量过瘤胃氯化胆碱对围产期奶牛产奶量、奶品质和血液生化指标的影响,以及作用机制。[方法]采用40头荷斯坦牛为试验对象,随机分为对照组、试验A组、试验B组和试验C组,其中对照组饲喂正常日粮,试验A组、B组和C组分别在日粮基础上添加10 g/头·d,20 g/头·d和30 g/头·d的过瘤胃氯化胆碱,检测其产奶量、奶品质、血糖、总胆固醇、甘油三酯和β-羟基丁酸变化。[结果]过瘤胃氯化胆碱能有效提高产奶量,增加奶中乳脂肪和乳糖含量,促进血糖恢复,降低总胆固醇和β-羟基丁酸,改善奶牛生产性能。[结论]日粮添加20 g/头·d过瘤胃氯化胆碱,改善奶牛生产性能、血液生化指标。[Objective]In order to explore the effects of different doses of per rumen choline chloride on milk yield,milk quality and blood biochemical indexes of periparturient cows,as well as the mechanism of action.[Method]Forty Holstein cows were randomly divided into control group,test group A,test group B and test group C.The control group was fed with normal diet,and test groups A,B and C were supplemented with 10 g/head-d,20 g/head-d and 30 g/head-d of per rumen choline chloride on top of their diets,and milk yield,milk quality,blood glucose,total cholesterol,triglyceride andβ-hydroxybutyric acid changes were detected.β-hydroxybutyric changes.[Result]Choline per rumen chloride was effective in increasing milk yield,milk fat and lactose content,promoting blood glucose recovery,lowering total cholesterol andβ-hydroxybutyric acid,and improving the production performance of dairy cows.[Conclusion]The addition of 20 g/head-d per-rumen choline chloride to the diet improved the performance and blood biochemical indexes of dairy cows.

关 键 词：氯化胆碱 奶牛 产奶量 乳脂肪 

分 类 号：S823.5[农业科学—畜牧学]