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Position: Home > Articles > The Correlative and Regressive Analysis on Body Weight and Size of Bashang Long-tail Chickens Gansu Animal Husbandry and Veterinary 2015 (2) 42-45

基坝上长尾鸡体重体尺性状相关及回归分析

作  者：
刘小辉;李祥龙;逯春香;李杰
单  位：
河北科技师范学院动物科技学院
关键词：
坝上长尾鸡;体重;体尺;相关;回归
摘  要：
为研究坝上长尾鸡体重体尺的相关性,选取350只30周龄坝上长尾鸡(公母鸡各175只)对体重体尺进行相关分析,并建立了体尺对体重的最优回归方程。结果表明,坝上长尾鸡公鸡体重(y)、体斜长(x1)、龙骨长(x2)、胫围(x3)、胸宽(x4)、胸深(x5)、胫长(x6)极显著大于母鸡(P<0.01),公鸡耻骨间距(x8)和胸角(x9)极显著小于母鸡(P<0.01),公鸡与母鸡骨盆宽(x7)差异不显著(P>0.05),体重和体尺间有不同程度相关性,且相关密切程度有性别差异,公母鸡体重与体尺最优回归方程分别为:y=0.077x1+0.206x3-0.057x6,y=0.054x1-0.048x2+0.071x4+0.132x7-0.005x9。
译  名：
The Correlative and Regressive Analysis on Body Weight and Size of Bashang Long-tail Chickens
作  者：
LIU Xiao-hui;LI Xiang-long;LU Chun-xiang;LI Jie;College of Animal science and Technology, Hebei Normal University of Science & Technology;College of Animal science and Technology, Agricultural University of Hebei;
关键词：
Bashang Long-tail chickens;;body weight;;body size;;correlation;;regression
摘  要：
A total number of 350 Bashang Long- tail chickens including 175 cocks and 175 hens in 30 th weeks were investigated in this Paper to analyze the correlation and regression on body weight and size of Bashang long- tail chickens and establish the o Ptimum regression equation. The results showed that the body weight(y), length(x1), keel length(x2), shank circumference(x3),chest width(x4), chest de Pth(x5), shank length(x6) of cocks were extremely significant greater than that of hens(P < 0.01), the pubic spacing(x8) and chest angle(x9) of cocks were extremely significant lesser than that of hens(P < 0.01), the width of pelvis(x7)had no significant difference between cocks and hens(P > 0.05). It had different degrees of correlation between body weight and size and the degree of correlation related with gender. The optimal regression equation of weight and size was y= 0.077x1+0.206x3- 0.057x6 for cocks and y= 0.054x1- 0.048x2+ 0.071x4+ 0.132x7- 0.005x9 for hens.

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