奶牛乳腺炎发病规律的调查

奶牛乳腺炎发病规律的调查

张珠明,汪仁莉

Investigation on Occurrence Regularity of Dairy Cattle Mastitis

畜牧与饲料科学 . 2009, (9): 82 -82 . DOI: 10.12160/j.issn.1672-5190.2009.09.036