不同营养水平日粮对妊娠期西门塔尔牛及其犊牛的影响  

Effects of Diets with Different Nutritional Levels on Gestational Simmemal Cows and Their Calves

作　　者：脱征军 张建勇 肖爱萍 张凌青 晁雅琳 徐寒 蒋秋斐 李欣 TUO Zheng-jun;ZHANG Jian-yong;XIAO Ai-ping(Ningxia Animal Husbandry Station,Yinchuan,Ningxia 750002)

机构地区：[1]宁夏回族自治区畜牧工作站,宁夏银川750002 [2]上海市农业科学院畜牧兽医研究所,上海201106

出　　处：《安徽农业科学》2023年第17期81-86,共6页Journal of Anhui Agricultural Sciences

基　　金：宁夏回族自治区青年拔尖人才培养项目。

摘　　要：为探究不同日粮营养水平对妊娠母牛繁殖性能的影响,试验选择40头2~5胎、体重相近的西门塔尔妊娠母牛,随机分为4组。然后,按照肉牛饲养标准设置低、中、高营养组和对照组。每2~3个月对试验牛称重,并对母牛血液学指标、产犊情况、犊牛初生重及增重进行统计。结果表明:对体况较好的妊娠后期母牛提供中等营养水平(能量水平低于国标10%、蛋白质水平低于国标5%)的日粮,即可满足其生产需要,实际生产中可获得较高的收益。该试验为肉牛养殖提供了因地制宜的日粮配方,对于节省养殖成本和提高养殖效益具有重要的参考价值。In order to explore the effects of diets with different nutritional levels on the reproductive performance of pregnant cows,40 Simmental pregnant cows with 2-5 parities and similar body weight were randomly divided into 4 groups.Then,we set up low,medium and high nutritional-level groups and control group according to the breeding standards of beef cattle.During the experiment,the test cattle were weighed every 2-3 months,and the calving conditions,the first birth weight as well as the weight gain of the calves were counted.The results showed that the cows in the late period of pregnancy with better body condition can meet the needs of production by providing medium-nutritional-level diet(energy level was 10%lower than the national standards,protein level was 5%lower than the national standards).And higher benefits could be obtained in actual production.This experiment provided the ration preparation according to local conditions for beef cattle breeding,which had important reference value for saving the breeding cost and improving the breeding efficiency.

关 键 词：营养水平 西门塔尔牛 繁殖性能 

分 类 号：S823.4[农业科学—畜牧学]