呼伦贝尔短尾羊体尺和体重性状相关及回归分析  

Correlation and Regression of Body Weight and Body Measurements on Hulun Buir Short Tail Sheep

作　　者：李江文[1] 王瑞珍[1] 赵艳芳 斯日特愣 全锁 韩国栋[1] 

机构地区：[1]内蒙古农业大学生态环境学院草学系,内蒙古呼和浩特010019 [2]鄂温克族自治旗动物疫病预防控制中心,内蒙古呼伦贝尔021100 [3]鄂温克族自治旗巴彦嵯岗苏木畜牧兽医站,内蒙古呼伦贝尔021100

出　　处：《家畜生态学报》2016年第9期18-22,共5页Journal of Domestic Animal Ecology

基　　金：国家科技部科技支撑项目(2012BAD13B02);教育部科技创新团队项目(IRT1259)

摘　　要：试验选取12只呼伦贝尔短尾适龄母羊和12只短尾羊羔羊(公母各半)作为研究对象,跟踪其体重及体尺变化,研究体重与体尺指标之间的相互关系。跟踪期羔羊从出生时开始,至羔羊100日龄结束,每隔10d记录一次数据,利用SAS进行相关性分析及建立回归方程。结果表明:呼伦贝尔短尾羊体重与各项体尺指标在不同水平下(P<0.0001或P<0.01)呈极显著的相关性;体高和体斜长对母羊体重的影响最大,胸围和最大额宽对母羊体重的影响最小;胸围和体高对羔羊体重的影响最大,管围和最大额宽对羔羊体重的影响最小;通过体高、体斜长、胸宽等体尺指标可以较准确地估计呼伦贝尔短尾羊的体重。In order to know the relationship between body weight and body measurement on Hulun Buir short tail sheep, twelve Hulun Buir short tail ewes from 2 years old to 4 years old were obtained from Ew- enki Autonomous Banner, and twelve Hulun Buir short tail lambs were selected, including six male and six female, to track the change of their body weight and body measurements. From the day the ewe giving birth the measurements and weight of ewes and lambs were measured every 10 days, over a 100-day peri- od. And correlation analysis and regression equation were conducted with SAS. The results showed a sig- nificant correlation between body weight and body measurements （P〈0. 0001 or P〈0.01） was found. The effect of body height and body slanting length on the weight of ewes was better than the effect of chest girth and maximal forehead width. At the same time, the chest girth and body height had greatest effects on weight of lamb, whereas leg girth and maximal forehead width had minimal impact on it. Therefore, it can be accurately evaluated the change of body weight through these index.

关 键 词：呼伦贝尔短尾羊 体重 体尺 相关性分析 回归分析 

分 类 号：S811.5[农业科学—畜牧学]