摘要
根据蒙城本地黄牛、秦本F1代、西本F1代(秦:秦川牛;西:西门塔尔牛;本:蒙城本地黄牛)及豫北黄牛、本夏利F2代和本夏西F2代(本:豫北黄牛;夏:夏洛来牛;西:西门塔尔牛)的体尺体重资料,运用生物统计方法对黄牛活重进行了四元回归分析,并建立了黄牛活重估测的四元回归方程。
The four factors regression method was used to anylize the data of body measurments (height at withers,body length,heart girth and circamference of cannon bone) and liveweight of yellow cattle,which includes Mengchen yellow cattle (M);F1 of Qincauan cattle×M;F1 of Simmental×M;Yubei yellow cattle(Y);F2 of Y×Charoleis ×Limousin;F2 of Y×Charoleis×Simmental.Then,the four factors regression equation for estimating yellow cattles liveweight was established.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2002年第6期73-76,共4页
Journal of Northwest A&F University(Natural Science Edition)
基金
陕西省科技攻关计划资助项目(2001K04-G1)
关键词
四元回归分析
估测
黄牛
活重
regression
yellow cattle liveweight
liveweight estimating
