应用逐步回归法估测中国西门塔尔牛体重的研究

›› 2009, Vol. 36 ›› Issue (9): 199-200.

应用逐步回归法估测中国西门塔尔牛体重的研究

贺建宁，李俊雅，许尚忠，袁峥嵘，甘乾福，李姣，周正奎，高雪，陈金宝

（中国农业科学院北京畜牧兽医研究所，中国农业科学院肉牛研究中心，北京 100193）

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-09-20 发布日期:2009-09-20
通讯作者: 许尚忠

Estimating the Weight of Chinese Simmental by Using Stepwise Regression

HE Jian-ning， LI Jun-ya， XU Shang-zhong， YUAN Zheng-rong， GAN Qian-fu，LI Jiao， ZHOU Zheng-kiu, GAO Xue, CHEN Jin-bao

（Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beef Cattle Research Center, CAAS, Beijing 100193， China）

Received:1900-01-01 Revised:1900-01-01 Online:2009-09-20 Published:2009-09-20
Contact: XU Shang-zhong

摘要/Abstract

摘要： 本研究根据内蒙古乌拉盖地区某牛场牛的体长、体高、胸围、腹围、管围等体尺指数，应用逐步回归法，对牛的体重进行估测，并比较实测体重与估测体重之间的差异。得出估测中国西门塔尔牛体重的一般公式，按此公式所作的F和t检验均表明预测值与实际体重测定值无显著差异，其相关系数值达到0.952。

关键词: 体尺指数; 逐步回归; 估测体重; 中国西门塔尔牛

Abstract: Body weight，body length，wither height，heart girth, abdominal circumference, cannon bone circumference of 165 Chinese Simmental were measured.Estimating the body weight by using stepwise regression,and compared with the measured body weight.The formula of estimated body weight of Chinese Simmental has been received in this paper.F and t test of the formula indicates that the predicted and actual value had no significant difference，and the related coefficient is 0.952.

Key words: body measurements; stepwise regression; estimating body weight; Chinese Simmental

中图分类号:

S823.911

贺建宁;李俊雅;许尚忠;袁峥嵘;甘乾福;李姣;周正奎;高雪;陈金宝. 应用逐步回归法估测中国西门塔尔牛体重的研究[J]. , 2009, 36(9): 199-200.

HE Jian-ning;LI Jun-ya;XU Shang-zhong;YUAN Zheng-rong;GAN Qian-fu;LI Jiao;ZHOU Zheng-kiu;GAO Xue;CHEN Jin-bao. Estimating the Weight of Chinese Simmental by Using Stepwise Regression[J]. China Animal Husbandry & Veterinary Medicine, 2009, 36(9): 199-200.