安徽农业科学,JournalofAnhuiAgri.Sci.2012,40(28):13828—13829,13834责任编辑乔利利责任校对况玲玲鸭源大肠杆菌氟苯尼考耐药基因f/oR的流行调查吴华,冯建坤,贺志沛,刘保光,胡功政h,(1.河南农业大学牧医工程学院,河南郑州450002;2.西藏职业技术学院畜牧兽医系,西藏拉萨850030)摘要[目的]了解我国部分地区鸭源大肠杆菌氟苯尼考耐药基因oR在临床菌株中的流行情况。[方法]采用美国临床实验室标准化委员会(CLSI)推荐的肉汤微量稀释法测定22株鸭大肠杆菌对氟苯尼考等9种药物的敏感性,并应用PCR方法检测氟苯尼考耐药基因floR。f结果]22株鸭源大肠杆菌对氟苯尼考和四环素全部耐药,耐药率达100%,呈现多重耐药性特点;其氟苯尼考耐药基因floR检出率为90.9%,与耐药表型基本一致。[结论]氟苯尼考在我国部分地区呈现高耐药性,对其耐药基因的监测为临床抗菌药物的合理使用提供了理论依据。关键词氟苯尼考;oR;耐药;PCR中图分类号S858.32文献标识码A文章编号0517—6611(2012)28—13828—02DetectionofthefloRGenesinFlorfenico1.resistantEscherichiacoliIsolatedfromDiseasedDucksWUHuaetal(CollegeofAnimalScienceandVeterinaryMedicine.HenanAgriculturalUniversity,Zhengzhou.Henan450002)Abstract『0biective]T0knowtheprevalenceoffloRgenesintheclinicalisolatesofEscherichiacolfromducksinsomeareasinChina.fMethod]22strainsofE.colwereisolatedfromsickducks.TheirMICsagainst9antibacterialagentsweredeterminedbythetwo—foldbrothmierodilutionmethodaccordingtoClinicalLaboratoryStandardizationInstitute(CLSI)and_,2oRgeneswereamplifiedbyPCRusingeverystrainastemplate.『Result]22strainsofE.colallexhibitedresistancetoflorfenicolandtetracyclineandownedmultipleresistantpheno—type.ThedetectionrateoffloRgeneswas90.9%,whichwasinaccordancewiththeresistancephenotype.IConclusionl肋RresistantgeneexhibitedhighdrugresistanceinsomeareasofChina,throughthemonitoringofitsdrugresistancegenes,sometheoreticalbasiswasprovidedforthereasonableapplicationofclinicalantibacterialdrugs.KeywordsFlorfenicol:floR;Drugresistance:PCR鸭源大肠杆菌病是由致病性大肠埃希氏菌(Escherichiacoli)引起鸭的一种烈性细菌性疾病。近年来,随着养鸭业向规模化、集约化方向发展,鸭大肠...