乌兰察布市泌乳奶牛亚临床酮病的调查研究
王志刚,董利云,杨俊芳
Investigation of Lactating Cows with Subclinical Ketosis in Ulanqab
畜牧与饲料科学 . 2010, (1): 98 -98 .  DOI: 10.12160/j.issn.1672-5190.2010.01.048