摘要
[目的]为了研究德南牛生长发育状况。[方法]采用SPSS23.0软件对河南省南阳市某德南牛某养殖场中的321头德南牛成年母牛,体尺指标进行相关性分析,选择5个生长性状进行相关性和主成分分析。[结果]德南牛体高、体斜长、胸围、管围、十字部高、具有极显著相关(P<0.01);从主成分的特征向量和贡献率来看,主成分1反映了德南牛的整体外貌结构信息,第2主成分反映了尻部特征。本研究为阐明德南牛的体型外貌特征和选育思路提供了依据。
[Objective] In order to study the growth and development of Denan cattle. [Method] Using SPSS23.0 software, the correlation analysis was carried out on the body size indexes of 321 adult Denan cattle cows in a Denan cattle farm in Nanyang city, Henan Province. Five growth traits were selected for correlation and principal component analysis. [Results] The body height, body oblique length, heart girth, circumference of cannon bone, and hip cross height of Denan cattle were highly significantly correlated(P<0.01). From the eigenvectors and contribution rates of principal components, principal component 1 reflected the overall appearance and structure information of cattle, the second principal component reflected the characteristics of croup. This study provided reference for clarifying the body shape and appearance characteristics and breeding ideas of Denan cattle.
作者
赵昭
赵家豪
刘贤
茹宝瑞
雷初朝
陈宏
黄永震
ZHAO Zhao;ZHAO Jia-hao;LIU Xian;RU Bao-rui;LEI Chu-chao;CHEN Hong;HUANG Yong-zhen(Nanyang Yamin Agriculture and Animal Husbandry Co.,Ltd.,Nanyang,Henan,473000;College of Animal Science and Technology,Northwest A&F University,Yangling,Shaanxi,712100;Henan Provincial Animal Husbandry Station,Zhengzhou,Henan,450008)
出处
《中国牛业科学》
2022年第5期22-25,共4页
China Cattle Science
基金
国家现代农业产业技术体系项目(CARS-37)
河南省肉牛产业技术体系项目(S2013-08)
河南省科技攻关项目(222102110069)
河南省农业科学院自主创新专项基金项目(2022C45)。
关键词
德南牛
体尺
体重
主成分分析
Denan cattle
body size
body weight
principal component analysis
