黑龙江某规模化奶牛场荷斯坦牛群主要DHI指标分析

于江明,刘胜军

Analysis of Main DHI Indices in Holstein Cattle Population in a Large-scale Dairy Farm of Heilongjiang Province

畜牧与饲料科学 . 2014, (10): 4 -4 . DOI: 10.12160/j.issn.1672-5190.2014.10.003