摘要
奶牛育种是奶牛场管理工作中的基础工作,更是一项需长期坚持的工作,奶牛生产性能测定(DHI)是奶牛育种工作的基础。本文对河北省近五年(2015-2019年)DHI参测场的牛群生产性能测定数据进行了分析,结果表明,牛群参测规模、日产奶量、305d产奶量、乳蛋白率都有较明显的提升,生产性能改良效果明显。
Dairy breeding is basic work in dairy-farm management,and also needs more long-term persistence.Meanwhile,DHI determination is the basement of dairy breeding work.This paper analyzed the DHI determination situation of Hebei Province in the recent five years(2015-2019),these results indicated that the size of the herd participating in DHI,milk yield,305-day milk yield,milk protein percentage were improved significantly,the effect of production performance improvement was obvious.
作者
李建明
刘林
邹杨
蒋桂娥
杨晨东
吕会敏
宋老六
LI Jian-ming;LIU Lin;ZOU Yang;JIANG Gui-e;YANG Chen-dong;LV Hui-min;SONG Lao-liu(Hebei Provincial Animal Breeding Workstation,Shijiazhuang 050000;Beijing Dairy Cattle Center,Beijing 100192;Beijing Sunlon Livestock Ltd.Co.,Beijing 100192;Baoding City Qingyuan County Animal Health Supervision,Baoding 071000)
出处
《中国奶牛》
2021年第6期61-64,共4页
China Dairy Cattle
关键词
河北省
荷斯坦牛
生产性能测定
成效
Hebei Province
Holstein cows
DHI
Performance improvement
