对中国奶牛体型鉴定员体型鉴定评分偏差的分析与研究  

Analysis and Research on the Type Classification of Chinese Dairy Cattle Type Appraisers

作　　者：汪聪勇 武泽文 闫青霞[3] 李姣[4] WANG Cong-yong;WU Ze-wen;YAN Qing-xia;LI Jiao(Beijing Lianyu Beef Cattle Breeding Technology Co.Ltd,Beijing 100193;Henan Dingyuan Cattle Breeding Co.Ltd,Zhengzhou 450046;Dairy Association of China,Beijing 100193;National Animal Husbandry Station,Beijing 100125)

机构地区：[1]北京联育肉牛育种科技有限公司,北京100193 [2]河南省鼎元种牛育种有限公司,郑州450046 [3]中国奶业协会,北京100193 [4]全国畜牧总站,北京100125

出　　处：《中国奶牛》2021年第8期20-23,共4页China Dairy Cattle

基　　金：中国奶牛基因组参考群建设项目。

摘　　要：本研究对6名中国奶牛体型鉴定员对8个牧场202头中国荷斯坦牛体型鉴定的数据进行研究与分析,利用Excel数据透视表功能计算出鉴定员各性状评分均值,利用SAS程序T检验程序对部位评分和体型总分进行显著性分析,研究不同体型鉴定员鉴定评分的偏差。结果表明,不同鉴定员各性状偏差评分占比范围为8.91%(棱角性和体深)到18.81%(后乳房附着高度),不同鉴定员在体躯容量、尻部、肢蹄、泌乳系统、乳用特征五个部位评分和体型总分之间的差异均不显著。This study choose the data of 202 Chinese Holstein cattle from 8 pastures of 6 Chinese dairy cattle type appraisers.The average score of different appraiser in each trait was calculated by using Excel PivotTable function,and the significance of position score and total score was analyzed by using SAS program t test program.The results showed that the deviation trait scores of different appraisers ranged from 8.91%(angularity and body depth)to 18.81%(rear udder height),and there were no significant differences in conformation,rump,foot and legs,mammary system,milk characteristics and total score among different appraisers.

关 键 词：中国荷斯坦牛 中国奶牛体型鉴定员 体型鉴定 

分 类 号：S823.3[农业科学—畜牧学]