摘要
为了解牦牛不同性别和年龄的体尺性状数据表现和相关性,实验采集146头健康的牦牛性别、年龄、体高、体斜长和胸围的数据,使用SPSS软件分析牦牛各体尺指标与体重之间相关性,并用SAS软件分析性别年龄对牦牛体尺的影响。结果表明,牦牛的体高、体斜长和胸围有显著的相关性,其中牦牛的胸围变异系数和标准差权衡数值最大,有较高的选育价值。此外,性别和年龄会对牦牛的选育产生很大影响,根据牦牛性别和年龄制定合适的选育标准。根据体尺估算不同性别和年龄的牦牛,发现体尺数据表现良好的牦牛在体重上同样表现良好。
In order to understand the performance and correlation across different sexes and ages,we collected data on sex,age,body height,body length,and chest circumference.We analyzed the correlation between each body size and body weight and assessed the impact of sex and age on body size using SAS software.The results revealed significant correlations among body height,body oblique length,and chest circumference,with the body weight variation coefficient and standard deviation being the largest,indicating a high breeding value.Furthermore,gender and age were found to have a significant impact on yak breeding.To address this,appropriate breeding criteria were established based on gender and age.Yaks of different sexes and ages were evaluated using body size data,and it was observed that yaks with favorable body size data performed equally well in weight.
作者
彭巍
张恺岩
赵黄青
付长其
张君
雷初朝
黄永震
PENG Wei;ZHANG Kai-yan;ZHAO Huang-qing;FU Chang-qi;ZHANG Jun;LEI Chu-zhao;HUANG Yong-zhen(College of Animal Science and Veterinary Medicine,Qinghai University,Xining,Qinghai 810016;College of Animal Science and Technology,Northwest A&F University,Yangling,Shaanxi 712100)
出处
《中国牛业科学》
2023年第6期1-3,共3页
China Cattle Science
基金
青海省科技计划(2021-ZJ-736)资助完成。
关键词
牦牛
体尺
体重
相关性分析
yak
body size
weight
correlation analysis
principal component analysis
作者简介
彭巍(1982-),男,博士,副研究员,研究方向:动物遗传育种和繁殖学研究;张恺岩(2000-),男,硕士生,专业为动物遗传与育种研究;通讯作者:黄永震(1982-),男,河南南阳人,博士,副教授,博士生导师,研究方向:动物遗传育种与繁殖。
