阿勒泰羊成年母羊体重及体尺性状的回归分析  

Regression Analysis on Body Weight and Body Traits in Adult Ewes of Altay Sheep

作　　者：张敏 刘建新 王明 徐冬 采复拉 高扬 尔夏提 李宗欣 黄锡霞[3] 全凯丽 阿依古丽 库木斯 郑文新 ZHANG Min;LIU Jianxin;WANG Ming;XU Dong;CAI Fula;GAO Yang;ER Xiati;LI Zongxin;HUANG Xixia;QUAN Kaili;AYGL;KUMUSI;ZHENG Wenxin(Institute of Animal Husbandry Quality Standards,Xinjiang Academy of Animal Science,Urumqi,Xinjiang 830026;Xinjiang Wool Engineering Technology Research Center,Urumqi,Xinjiang 830026;College of Animal Science,Xinjiang Agricultural University,Urumqi,Xinjiang 830052;Agricultural(Animal Husbandry)Development Service Center in Alda Township,Fuhai County,Xinjiang 836400,China)

机构地区：[1]新疆畜牧科学院畜牧业质量标准研究所,新疆乌鲁木齐830026 [2]新疆毛绒工程技术研究中心,新疆乌鲁木齐830026 [3]新疆农业大学动物科学学院,新疆乌鲁木齐830052 [4]新疆福海县阿尔达乡农业(畜牧业)发展服务中心,新疆福海836400

出　　处：《家畜生态学报》2024年第3期22-26,共5页Journal of Domestic Animal Ecology

基　　金：新疆维吾尔自治区自然基金(2020D01B14)。

摘　　要：为研究阿勒泰羊成年母羊体尺与体重的相关关系,测定439只健康阿勒泰羊成年母羊的体重(y)、体高(X_(1))、体长(X_(2))、胸宽(X_(3))、胸深(X_(4))、胸围(X_(5))、管围(X_(6))、脂臋长(X_(7))、脂臀宽(X_(8))、脂臀厚(X_(9))10个性状,运用SPSS 26.0软件对数据进行描述性统计、相关系数与通径系数的计算,采用多元回归分析中的逐步回归法建立体重与体尺的最优回归模型。结果表明,胸围与阿勒泰羊成年母羊体重呈极显著正相关(P<0.01),其次为胸宽;胸围对阿勒泰羊成年母羊体重的直接作用和间接作用大于其它性状;阿勒泰羊成年母羊的最优回归模型为:Y=0.251X_(1)+0.568X_(3)+0.438X_(4)+3.487X_(6)+0.443X_(9)-42.579,该模型中体重与胸围、管围、胸宽、脂臀厚、体高呈极显著线性回归关系(P<0.01)。本研究可为实际阿勒泰羊成年母羊的育种实践提供参考,以此提高阿勒泰羊的选育速度与效率。To investigate the correlation between body weight and body traits in Altay sheep adult ewes,the body weight(y),body height(X_(1)),body length(X_(2)),chest width(X_(3)),chest depth(X_(4)),chest circumference(X_(5)),tube circumference(X_(6)),fat buttock length(X_(7)),fat buttock width(X_(8)),and fat buttock thickness(X_(9))of 439 healthy and disease-free Altay sheep adult ewes were measured.The data were subjected to descriptive statistics and correlation coefficients using SPSS 26.0 software The path coefficient and stepwise regression in multiple regression analysis were used to establish the optimal regression model for weight and body size.The results showed that there was a highly significant positive correlation(P<0.01)between chest circumference and adult maternal weight of Altay sheep,followed by chest width;the direct and indirect effects of chest circumference on the weight of adult Altay sheep ewes were greater than other traits;The optimal regression model for adult ewes of Altay sheep was Y=0.251X_(1)+0.568X_(3)+0.438X_(4)+3.487X_(6)+0.443X_(9)-42.579.In this model,there was a highly significant linear regression relationship(P<0.01)between body weight and chest circumference,tube circumference,chest width,fat buttocks thickness,and body height.This study elucidated the relationship between the body weight and body traits in Altay sheep adult ewes,which could serve as a reference for actual Altay sheep breeding practices and improve the breeding speed and efficiency of Altay sheep with high body weight.

关 键 词：阿勒泰羊成年母羊 体重 体尺 相关 回归 

分 类 号：S826.2[农业科学—畜牧学]