摘要
本文在于寻求用较短时间的产奶指标来估算初产母牛３０５天的产奶量，以达到缩短选择周期加速育种进程的目的。
The author applyed the milk yield in a short period as a target for estimatingthe milk yield of first calf heifer in 305 days, to achieve the aim for shortening the period ofselection and quickening the process of breading.
出处
《宁夏农学院学报》
1995年第1期44-48,共5页
Journal of Ningxia Agricultural College
关键词
多元回归方程
乳牛
生产性能
产乳量
polyregression equation
milk cow
phenotypic correlation of production performence
