机译:冀东地区造成奶牛隐性乳腺炎的主要病原学调查
Laboratory;
of;
Preventive;
Veterinary;
Medicine;
in;
Hebei;
Province/Animal;
Science;
School,;
Hebei;
Normal;
University;
of;
Science;
&;
Technology,;
Changli,;
066600;
China;
Jinfuzhi;
Dairy;
cattle;
farm,;
Qian'an;
064400;
China;
Xinhua;
Scientific;
Veterinary;
Medicine;
Co.,Ltd,;
Luancheng,;
051430;
China;
奶牛隐性乳房炎; 冀东; 金黄色葡萄球菌; 致病菌; 无乳链球菌; 流行病学调查; 牛奶样品; 隐性乳腺炎;