策勒黑羊母羊脂尾性状特征及其与体重、体尺的相关性分析  

Characteristics of Cele black sheep fat tail and its correlation with body weight and body size

作　　者：米热妮萨·图尔荪托合提 张继虎 买尔哈巴 郑浪漫 李亮[3] 刘书东[1,2] Mirenisa Tuersuntuoheti;ZHANG Jihu;Maierhaba;ZHENG Langman;LI Liang;LIU Shudong(College of Animal Science and Technology,Tarim University,Alar 843300,China;Tarim Animal Science and Technology Key Laboratory of Xinjiang Production and Construction Corps,Alar 843300,China;Pratacultural Research Institute,Xinjiang Academy of Animal Science,Urumqi 830000,China)

机构地区：[1]塔里木大学动物科学与技术学院,新疆阿拉尔843300 [2]新疆生产建设兵团塔里木畜牧科技重点实验室,新疆阿拉尔843300 [3]新疆畜牧科学院草业研究所,乌鲁木齐830000

出　　处：《黑龙江畜牧兽医》2022年第19期59-63,共5页Heilongjiang Animal Science And veterinary Medicine

基　　金：国家自然科学基金项目(32060743);新疆维吾尔自治区农区高效肉羊品种选育项目(xjnqry-g-2006);2021年塔里木大学研究生科研创新项目(TDGRI202133)。

摘　　要：为了探究策勒黑羊脂尾性状特征及其与体重、体尺的相关性,试验选取健康的成年策勒黑羊母羊408只,测定体重(y)、体高(x_(1))、体长(x_(2))、体斜长(x_(3))、胸宽(x_(4))、胸深(x_(5))、胸围(x_(6))、管围(x_(7))、尾长(x_(8))、尾宽(x_(9))和尾周长(x_(10)),计算尾体积(x_(11)),分析策勒黑羊母羊的尾体积差异,根据尾体积进行尾型分型,并对体重与脂尾性状和体尺指标进行相关性分析,构建体重的最优回归方程。结果表明:策勒黑羊母羊平均尾体积较大,为(18108.51±11868.52)cm3,策勒黑羊母羊的尾型分为小尾型、中尾型、大尾型和肥尾型;肥尾型策勒黑羊母羊的数量比较少(9只),中尾型数量较多(223只);肥尾型的策勒黑羊母羊的体重、体长、体斜长、胸围、尾长、尾宽和尾周长均极显著大于其他三种尾型(P<0.01);策勒黑羊母羊的体高、体长、体斜长、胸深、胸围、管围、尾长、尾宽和尾周长与体重均呈极显著正相关(P<0.01);构建的母羊体重最优回归方程为y=0.152x_(5)+0.078x_(6)+0.146x_(9)+0.284x_(2)+6.430。说明策勒黑羊尾部性状与体重密切相关,揭示尾部性状对产肉性能具有一定影响,在策勒黑羊生产性能测定和品种选育中要关注尾部性状。In order to explore the characteristics of Cele black sheep fat tail and its correlation with body weight and body size,a total of 408 healthy adult Cele black ewes were selected to measure body weight(y),body height(x_(1)),body length(x_(2)),body oblique length(x_(3)),chest width(x_(4)),chest depth(x_(5)),chest circumference(x_(6)),tube circumference(x_(7)),tail length(x_(8)),tail width(x_(9)),and tail circumference(x_(10)).The tail volume(x_(11))was calculated,and the difference in tail volume of Cele black ewes was analyzed.According to the tail volume,tail types were classified,and the correlation between body weight and tail fat traits and body size indexes was analyzed to construct the optimal regression equation of body weight.The results showed that Cele black ewes had a larger average tail volume,which was(18108.51±11868.52)cm^(3).The tail types of Cele black ewes were divided into small tail type,medium tail type,big tail type and fat tail type.The number of fat tail type Cele black ewes was small(9),while the number of middle tail type Cele black ewes was big(223).The body weight,body length,body oblique length,chest circumference,girth length,tail width and tail circumference of Cele black ewes with fat tail type were significantly higher than those of the other three tail types(P<0.01).The body height,body length,body oblique length,chest depth,chest circumference,tube circumference,tail length,tail width and tail circumference were positively correlated with body weight(P<0.01).The optimal regression equation of ewe weight was y=0.152x_(5)+0.078x_(6)+0.146x_(9)+0.284x_(2)+6.430.These results indicated that the tail traits of Cele black sheep were closely related to body weight,which revealed that tail traits had certain influence on meat production performance.Therefore,the tail traits should be paid attention to in performance measurement and breed selection of Cele black sheep.

关 键 词：策勒黑羊 尾部性状 脂尾性状 体尺性状 相关性分析 

分 类 号：S826[农业科学—畜牧学]