牛支原体与大肠杆菌混合感染病例的实验室诊断
GUIZHOU JOURNAL OF ANIMAL HUSBANDRY & VETERINARY MEDICINE（2022）
Abstract
为查明黔西南布依族苗族自治州某养牛场牛群发病死亡的病因,临床采集病死牛肺脏组织进行牛支原体核酸PCR检测、细菌分离培养鉴定及药敏试验.结果:牛支原体核酸PCR检测为阳性;分离菌为革兰氏阴性短杆菌,16S rDNA测序鉴定为大肠杆菌,药敏试验显示其对氨苄西林、头孢唑啉、头孢呋辛高度敏感,对新霉素、头孢哌酮、米诺环素、庆大霉素、红霉素耐药.结论:确诊牛场病例为牛支原体与大肠杆菌混合感染,可选取高度敏感药物进行治疗.
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