鴿源大腸桿菌的分離鑒定及耐藥性分析

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中圖分類號： S852.61+2 文獻標識碼：A 文章編碼：1005-8567（2025）03-0039-07

Abstract：Toinvestigate theprevalenceand drugresistanceofEscherichiacoli（E.coli）inapigeon farm in Guangdong，E.coliwasisolatedandidentifiedfromtherectalcontentsof deadpigeonsinthisstudy，conducted antibiotic susceptibility tests onthe isolates using agar dilution method，andalsodetectedthedrug resistancegenesof theisolates using PCR.The resultsshowed that 120 E .coli strainswereisolated from 15O samples.The antibiotic susceptibilitytestsshowedthattheisolates wereresistanttoCiprofloxacin，Ampicilin，ndotherantibioticstovarying degres.Of the 12O isolates，74 strains had multiple drug resistance.The PCR detection revealed thatthe isolates with drug resistance phenotypecarried 6resistance genes，including qnrS、blarEm、blacrx-mblaVIMaaC4 and sul1.These resultsindicated thatthe isolates areresistant to13 antibiotics to varying degrees，with mostofthem having multiple resistance.Moreover，the isolatescarry multiple resistancegenes.Thisstudycould providereference for the prevalence，antibiotic resistance status and clinical rational drug use of pigeon-source E .coli in Guangdong Province.

Keywords：Pigeons；Escherichiacoli（E.coli）；Isolation and identification；Theprevalence；Drug resistance

近年來，隨著國民經濟水平的提高以及特禽飼養(yǎng)業(yè)的快速發(fā)展，肉鴿養(yǎng)殖煥發(fā)出蓬勃生機，養(yǎng)殖模式由散養(yǎng)向規(guī)?；?、集約化方向發(fā)展1。（剩余9732字）