玉米秸秆青贮饲料与全株玉米青贮饲料饲喂奶牛的差异研究  

Study on the Difference between Corn Straw Silage and Whole Plant Corn Silage Fed to Dairy Cows

作　　者：李浩[1] 徐文波 郭涛 罗萍 刘珍 郑新宝[1] 冯东河 LI Hao;XU Wenbo;GUO Tao;LUO Ping;LIU Zhen;ZHENG Xinbao;FENG Donghe(Xinjiang Academy of Animal Husbandry,Urumqi Xinjiang 830011;Xinjiang Uygur Autonomous Region Animal Husbandry Information Center,Urumqi Xinjiang 830000;Shenzhen Agricultural Science and Technology Promotion Center,Shenzhen 518172)

机构地区：[1]新疆畜牧科学院,新疆乌鲁木齐830011 [2]新疆维吾尔自治区牧业信息中心,新疆乌鲁木齐830000 [3]广东省深圳市农业科技促进中心(深圳援疆指挥部),广东深圳518172

出　　处：《中国乳业》2022年第7期21-24,共4页China Dairy

基　　金：新疆维吾尔自治区奶业振兴重大科技专项(2020A01001-1)。

摘　　要：玉米秸秆和全株玉米均是制作奶牛青贮饲料的重要原料。为比较玉米秸秆青贮饲料与全株玉米青贮饲料对奶牛生产性能的影响,本研究将胎次、年龄、体重及产奶量相同的20头奶牛分为两组——试验组1和试验组2,分别饲喂玉米秸秆青贮饲料与全株玉米青贮饲料,通过统计各组奶牛产奶量、乳脂率及乳蛋白率,分析玉米秸秆青贮饲料与全株玉米青贮饲料对奶牛生产性能的影响。试验结果表明,试验组2的日平均产奶量高于试验组1,且差异极显著(P<0.01);试验组1和试验组2乳脂率差异不显著(P>0.05);试验组2的平均乳蛋白率高于试验组1,且差异显著(P<0.05),且全株玉米青贮比玉米秸秆青贮经济效益更高,一个泌乳周期可增加736.8元/头。Corn straw and whole corn are important raw materials for making silage for dairy cows..In order to compare the effects of corn straw silage and whole plant corn silage on milk production performance of dairy cows,twenty dairy cows with the same parity,age,weight,milk production were divided into two groups,respectively fed corn straw silage and whole plant corn silage.Effects of silage on milk production performance of dairy cows were analyzed by milk yield,milk fat percentage and milk protein percentage.The results showed that the average daily milk yield of experimental group 2 was significantly higher than that of experimental group 1(P<0.01).There was no significant difference in milk fat percentage between experimental groups 1 and 2(P>0.05).The average milk protein percentage of test group 2 was significantly higher than that of test group 1(P<0.05),and the economic benefit of whole corn silage was higher than that of corn straw silage,with an increase of 736.8 yuan per head per lactation cycle.

关 键 词：玉米 青贮饲料 奶牛 产奶量 乳脂率 乳蛋白率 

分 类 号：S823.5[农业科学—畜牧学]