奶水牛体型线性性状与其第一胎305 d产奶量的相关与通径分析  

Path analysis between first 305 days' milk yield and linear conformation traits of buffalo cows

作　　者：郭亚芬[1] 蒋钦杨[1] 罗琴[1] 廖长友[1] 杨炳壮[2] 李宗权[2] 莫毅[1] 蒋和生[1] 兰干球[1] 

机构地区：[1]广西大学动物科学技术学院,广西南宁530005 [2]广西水牛研究所,广西南宁530001

出　　处：《广西农业生物科学》2008年第1期52-54,共3页Journal of Guangxi Agricultural and Biological Science

基　　金：广西自然科学基金项目(桂科基0448003)

摘　　要：对广西水牛研究所共84头奶水牛的体型线性性状与其第一胎305 d产奶量进行相关与通径分析。结果显示:奶水牛体型线性性状中,尻长与摩拉水牛、尼里-拉菲水牛、三品杂水牛等三个品种奶水牛的第一胎305 d产奶量均有较强的相关,分别是0.3141、0.3343和-0.2184;此外,摩拉水牛的体高(-0.3410),尼里-拉菲水牛的后房高(0.3847)、后房宽(0.4750),三品杂水牛的后房高(-0.2852)、乳房深(0.2662)与其对应的第一胎305 d产奶量有较强的相关。结果表明:奶水牛体型线性性状与其第一胎305 d产奶量存在一定的相关,但其影响在不同品种间有很大的差异;结果也可能表明对奶水牛体型线性性状的选择标准和要求不同于普通奶牛。Correlation and path analysis were applied to linear conformation traits and the first 305 days milk yield of 84 buffalo cows.Thurl-length had strong correlation with three varieties buffalo cows(Murrah,Nili-Ravi and three-way crossbred buffalo),their coefficients of correlation were 0.3141,0.3343 and-0.2184 respectively.There was a negative relationship (-0.3410) between the milk yield and body-height of Murrah.Height and width of udder of Nili-Ravi had a positive relationship with the milk yield,0.3847 a...

关 键 词：奶水牛 体型线性性状 通径分析 第一胎305d产奶量 

分 类 号：S823[农业科学—畜牧学]