河北省奶牛养殖现状及对策研究

徐玥,何瑶,乔常鑫,谢雨璇,王洁

Analysis of Current Situation of Dairy Cow Breeding in Hebei Province and Improving Countermeasures

畜牧与饲料科学 . 2018, (7): 76 -76 . DOI: 10.12160/j.issn.1672-5190.2018.07.016