摘要
本文采用云南省肉牛与牧草研究中心杂交选育的热带亚热带肉牛BMY和纯种婆罗门(Brahman,简称B)的资料,配合动物模型,应用MTDFREML软件估计了2000～2003年每头公牛的EBV最佳线性无偏预测值,并依据年度均值作出遗传趋势,为选种和遗传评估提供依据.
Animal model for Yunnan beef cattle BMY, a tropical and subtropical beef cattle, and Brahman (B) cal- culated EBV of birth weight and 6-month weight in this paper. EBV’s BLUP value of top individuals was shown from the data collected by Yunnan Beef Cattle and Pasture Research Center from 2000 to 2003. And genetic trend was given according to yearly average. The genetic trend is rising from 2001 to 2003 about birth weight and body weight at 6 months of BMY and body weight at 6 months of B, while which of B’s birth weight is descending. The results may be helpful to select breeder.
出处
《黄牛杂志》
2005年第4期40-42,68,共4页
Journal of Yellow Cattle Science
基金
云南省科技攻关计划项目"云南省热带亚热带肉牛新品系(种)选育研究"(2001NG36)资助。
关键词
肉牛
育种值
遗传趋势
<Keyword>Beef cattle
Breeding value
Genetic trend
