江苏、山东部分地区禽致病性大肠杆菌流行病学调查

发布时间：2019-04-09 07:21

【摘要】：禽大肠杆菌病是造成家禽高发病率和死亡率的重要疾病,该病是由禽致病性大肠杆菌(Avian pathogenic Escherichia coli,APEC)感染引起的细菌性疾病。通过对2015~2016年分离自江苏和山东部分地区的173株禽大肠杆菌的血清型、致病性、耐药性等流行病学特征进行调查,结果表明:定型菌株135株,未定型菌株38株,定型率为78.03%;优势血清型有O78(21%)、O24(12%)、O1(10%),其余定型菌株涉及31种血清型;55个进行1日龄易感鸡致病性试验的分离株中,高致病性菌株39个,中度致病性菌株5个,低致病性菌株11个,其中80%分离株具有高中致病力;耐药性检测结果表明,APEC普遍存在耐药性,所有分离株对10种以上的抗生素耐药。调查结果为该地区禽大肠杆菌病的防控提供参考。
[Abstract]:Avian colibacillosis is an important disease which causes high morbidity and mortality of poultry. It is a bacterial disease caused by avian pathogenic Escherichia coli (Avian pathogenic Escherichia coli,APEC infection. The serotype, pathogenicity and drug resistance of 173 strains of avian Escherichia coli isolated from parts of Jiangsu and Shandong provinces in 2015-2016 were investigated. The results showed that 135 strains were typed and 38 strains were untyped. The setting rate was 78.03%; The dominant serotypes were O78 (21%), O24 (12%) and O1 (10%). There were 39 highly pathogenic strains, 5 moderate pathogenic strains and 11 low pathogenic strains among 55 isolates of one-day-old susceptible chicken, of which 80% had high-school pathogenicity. The results of drug resistance test showed that the drug resistance of APEC was universal, and all isolates were resistant to more than 10 kinds of antibiotics. The results provide reference for the prevention and control of avian colibacillosis in this area.
【作者单位】：江苏省动物重要疫病与人兽共患病防控协同创新中心;扬州大学兽医学院农业部禽用生物制剂创制重点实验室;江苏省仪征市大仪畜牧兽医站;
【基金】：国家自然科学基金项目(31272559;30972196、30771604、30471281、31672553、31602059) 公益性行业(农业)科研专项(201303044) 江苏省自然科学基金项目(BK20140485;BK20151308) 江苏省高校自然科学基金项目(14KJB230001) 江苏高校优势学科建设工程资助项目(PAPD)
【分类号】：S855.12

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