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奶牛隐性乳房炎葡萄球菌分离株药敏试验

Chinese Journal of Veterinary Medicine(2017)

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Abstract
为了解辽宁部分地区奶牛隐性乳房炎葡萄球菌的耐药性,采用生化鉴定试验对采集的奶牛隐性乳房炎阳性乳样进行了葡萄球菌的鉴定,采用肉汤微量稀释法测定葡萄球菌分离株对22种抗菌药物的敏感性.结果显示,31株奶牛隐性乳房炎葡萄球菌分离株对22种抗菌药物均产生了不同程度的耐药性,对氨苄西林、苯唑西林、青霉素、头孢氨苄、头孢唑林、林可霉素及磺胺甲噁唑耐药率为100%,对喹诺酮类药物敏感.100%葡萄球菌分离株同时耐5类以上(含5类)抗菌药物,以耐7类抗菌药物为主,占38.7%,其余依次为5耐、6耐及8耐,比率分别为35.5%、19.4%和6.5%.
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