畜牧兽医学报2024，Vol.55Issue(7)：3261-3266,6.DOI:10.11843/j.issn.0366-6964.2024.07.044
宁夏部分地区犊牛腹泻样本大肠杆菌分离菌株的毒力因子检测与分析
Toxicity Factor Detection and Analysis of Escherichia coli Isolated Strains from Calf Diarrhea Samples in Some Areas of Ningxia
摘要
Abstract
The aim of this study was to investigate the prevalence and virulence factors of Escherichia coli(E.coli)in calves in Ningxia region.A total of 332 samples of diarrhea calf rectal feces were collected in Ningxia region for pathogen isolation,and 156 strains of E.coli were detected for 13 related virulence genes using PCR method.The results show that a total of 156 strains(46.99％)of E.coli were isolated,and a total of 136 strains containing virulence factors were detected.This indicates that the current positive rate of E.coli in diarrhea calves in Ningxia is relatively high,and the combination of virulence factors is complex,with irp2 being the dominant virulence factor.关键词
犊牛/腹泻性/大肠杆菌/毒力因子Key words
calves/diarrhea/Escherichia coli/toxicity factor分类
农业科技引用本文复制引用
王玮,李继东,王景松,郭亚男,高乐,王玲玲,陈灿,王健霖,王建东,马科..宁夏部分地区犊牛腹泻样本大肠杆菌分离菌株的毒力因子检测与分析[J].畜牧兽医学报,2024,55(7):3261-3266,6.基金项目
宁夏回族自治区重点研发计划项目(2022BBF03024) （2022BBF03024）
