不同月龄苏尼特羊体重及体尺与尾部性状指标的相关性、通径与回归分析  

Correlation,path and regression analysis between body weight with body size and tail traits of Sunit sheep at different months of age

作　　者：斯琴其木格 倪娜[1] 乌云娜 哈思鸿 吴琼 格日勒图[4] SIQIN Qimuge;NI Na;Wuyunna;Hasihong;WU Qiong;Gerelt(College of Life Science and Food Engineering,Inner Mongolia Minzu University,Tongliao 028000,China;Urat Banner Agricultural and Livestock Product Quality and Safety Center,Linhe 015300,China;Horqin Right Front Banner Administration for Market Regulation,Ulanhot 137400,China;College of Food Science and Engineering,Inner Mongolia Agriculture University,Hohhot 010018,China)

机构地区：[1]内蒙古民族大学生命科学与食品学院,内蒙古通辽028000 [2]乌拉特中旗农畜产品质量安全中心,内蒙古临河015300 [3]内蒙古科尔沁右翼前旗市场监督管理局,内蒙古乌兰浩特137400 [4]内蒙古农业大学食品科学与工程学院,呼和浩特010018

出　　处：《黑龙江畜牧兽医》2024年第14期41-48,共8页Heilongjiang Animal Science And veterinary Medicine

基　　金：内蒙古自治区自然科学基金项目“miRNA与RNA-seq联合分析筛选肥羔肉质性状关键候选基因”(2019BS03036);内蒙古民族大学博士启动基金项目“miRNA与RNA-seq联合分析筛选肥羔肉质性状关键候选基因”(BS528);大学生创新训练项目“畜废变宝—马胎盘粉的制备与品质评价”(S202310136015)。

摘　　要：为了探究苏尼特母羊体重与体尺和尾部性状指标间的关系,试验以239只不同月龄苏尼特母羊(其中3月龄79只,6月龄和12月龄各80只)为研究对象,测量/计算羊只体重(Y)和体尺[体高(X_(1))、背高(X_(2))、体斜长(X_(3))、胸宽(X_(4))、胸深(X_(5))、胸围(X_(6))]、尾部[尾长(X_(7))、尾宽(X_(8))、尾面积(X_(9))、尾厚(X_(10))、尾体积(X_(11))]性状指标,利用SPSS 23.0软件进行体重及体尺与尾部性状指标的相关性性、通径与回归分析。结果表明:不同月龄苏尼特母羊变异系数较大的指标为尾厚、胸宽和背高;不同月龄苏尼特母羊各体尺和尾部性状指标均与体重呈极显著正相关关系(P<0.01),3,6,12月龄苏尼特母羊体重与体尺和尾部性状指标的相关系数分别由大到小依次为胸深>胸围>胸宽>体高>背高>尾面积>尾宽>尾体积>尾厚>体斜长>尾长、尾面积>背高>胸宽>尾宽>胸围>体斜长>胸深>尾体积>体高>尾长>尾厚、尾体积=背高>胸围>尾面积>胸深>尾宽>胸宽>体斜长>尾厚>体高>尾长。3,6,12月龄苏尼特母羊各体尺和尾部性状指标对体重的直接作用分别由大到小依次分别为尾面积>尾厚>胸围>体高>背高>体斜长>胸宽>胸深>尾宽>尾长>尾体积、尾面积>背高>胸深>尾厚>胸宽>体斜长>尾长>体高>尾宽>胸围>尾体积、尾面积>尾厚>背高>胸深>胸围>体斜长>胸宽>体高>尾长>尾体积>尾宽。3,6,12月龄苏尼特母羊各体尺和尾部性状指标对体重的间接作用由大到小依次分别为尾体积>尾长>尾宽>胸深>胸宽>体高>体斜长>背高>胸围>尾厚>尾面积、尾体积>胸围>尾宽>体高>尾长>体斜长>胸宽>胸深>背高>尾厚>尾面积、尾宽>尾体积>尾长>胸宽>体高>体斜长>胸围>胸深>背高>尾厚>尾面积。3,6,12月龄苏尼特母羊对体重具有较高决策系数的体尺和尾部性状指标依次分别为胸围>体高>背高>胸宽、背高>胸宽>胸深>尾厚、背高>尾厚>胸深>胸围。3,6,In order to explore the relationship between body weight and body size and tail traits indexes in Sunit sheep,239 Sunit ewes(seventy nine aged 3 months,eighty aged 6 and 12 months respectively)were used as the study subjects.The body weight(Y),body size(body height[X_(1)],back height[X_(2)],body oblique length[X_(3)],chest width[X_(4)],chest depth[X_(5)],chest circumference[X_(6)]),and tail traits(tail length[X_(7)],tail width[X_(8)],tail area[X_(9)],tail thickness[X_(10)],tail volume[X_(11)])indexes were measured/calculated.Correlation analysis,path analysis and stepwise regression analysis,between body weight and body size with tail traits indexes were performed by SPSS 23.0 software.The results showed that the higher coefficient of variation in Sunit ewes at different months were tail thickness,chest width and back height.Body size and tail traits in Sunit sheep at different months of age were significantly positively correlated with body weight(P<0.01).The correlation coefficients between body weight and body size with tail traits indexes in 3-month-old,6-month-old and 12-month-old Sunit ewes from large to small in turn were chest depth>chest circumference>chest width>body height>back height>tail area>tail width>tail volume>tail thickness>body oblique length>tail length,tail area>back height>chest width>tail width>chest circumference>body oblique length>chest depth>tail volume>body height>tail length>tail thickness,and tail volume=back height>chest circumference>tail area>chest depth>tail width>chest width>body oblique length>tail thickness>body height>tail length,respectively.The direct effects of body size and tail traits indexes on body weight in 3-month-old,6-month-old and 12-month-old Sunit ewes from large to small in turn were tail area>tail thickness>chest circumference>body height>back height>body oblique length>chest width>chest depth>tail width>tail length>tail volume,tail area>back height>chest depth>tail thickness>chest width>body oblique length>tail length>body height>tail width>chest circumferen

关 键 词：苏尼特羊 体重 体尺 尾部性状 相关性分析 通径分析 逐步回归分析 

分 类 号：S826.89[农业科学—畜牧学]