燕山绒山羊体尺、体重、绒厚与产绒量的相关回归分析  

Correlation Regression Analysis on Body Size,Body Weight,Cashmere Thickness and Cashmere Yield of Yanshan Cashmere Goat

作　　者：葛丛丛 刘华云 李寒妹 付艳芳 付志新[1] 刘铮铸[1] 巩元芳[1] GE Congcong;LIU Huayun;LI Hanmei;FU Yanfang;FU Zhixin;LIU Zhengzhu;GONG Yuanfang(Hebei Key Laboratory of Specialty Animal Germplasm Resources Exploration and Innovation under planning,College of Animal Science and Technology,Hebei Normal University of Science&Technology,Qinhuangdao 066004,China;Hebei Provincial Animal Husbandry Station,Shijiazhuang,050035,China)

机构地区：[1]河北科技师范学院动物科技学院,河北省特色动物种质资源挖掘与创新重点实验室,河北秦皇岛066004 [2]河北省畜牧总站,河北石家庄050035

出　　处：《家畜生态学报》2021年第5期22-25,共4页Journal of Domestic Animal Ecology

基　　金：河北省羊产业技术体系创新团队遗传资源开发与利用岗位专家项目(HBCT2018140201);河北省研究生创新资助项目(CXZZSS2020122)。

摘　　要：为探究燕山绒山羊体尺、体重、绒厚与产绒量的相互关系,对燕山绒山羊各体尺指标、抓绒后体重、绒厚与产绒量进行相关分析、通径分析和回归分析,并建立最优回归方程。结果表明,体长(X 1)、体高(X 2)、胸围(X 3)、绒厚(X 5)、抓绒后体重(X 6)与产绒量(Y)均呈极显著正相关(P<0.01),绒厚对产绒量的直接作用最大(0.547),其次是胸围和体长(0.194和0.138),抓绒后的体重主要是通过间接作用影响产绒量。燕山绒山羊体尺与产绒量的最优线性回归方程为Y=0.161X 1(体长)+0.244X 3(胸围)+0.555X 5(绒厚)。以上研究结果提示,对于燕山绒山羊的选育,在考虑提高产绒量的同时,需兼顾绒厚、胸围和体长等性状。To explore the correlation between body size,body weight,cashmere thickness and cashmere yield of Yanshan Cashmere Goat,the correlation,path and regression analysises between the body size,body weight after fleece,cashmere thickness and cashmere yield of Yanshan Cashmere Goat were conducted,and the optimal regression equation was established.The results showed that there were positive significant correlations between body length(X 1),body high(X 2),chest girth(X 3),cashmere thickness(X 5),body weight after fleece(X 6)and cashmere yield(Y)(P<0.01).The direct effect of cashmere thickness on the amount of cashmere was the largest(0.547),followed by chest girth and body length(0.194 and 0.138).The body weight after fleece affected the amount of cashmere mainly through indirect effects.The optimal linear regression equation of body size and cashmere yield of Yanshan Cashmere Goats was Y=0.161X 1(body length)+0.244X 3(chest girth)+0.555 X 5(cashmere thickness).The above results suggested that for the breeding of Yanshan Cashmere Goat,it is necessary to take cashmere thickness,chest girth and body length into consideration when considering the increase of cashmere production.

关 键 词：燕山绒山羊 体尺 产绒量 回归分析 

分 类 号：S827.9[农业科学—畜牧学]