期刊
BMC VETERINARY RESEARCH
卷 16, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s12917-020-02488-z
关键词
Broiler chickens; Colibacillosis; E; coli; Resistance genes; Prevalence
资金
- Vice Chancellor of Research and Technology of University of Zabol [UOZ-GR-9618-56]
BackgroundAntibiotics have long been the first line of defense to prevent Escherichia coli infections, but they have lost their potency since bacteria have grown increasingly resistant to treatment. The present research aimed to study the drug resistance and the prevalence of tetracycline resistance genes in E. coli isolated from broilers with colibacillosis.ResultsThe results showed that the most prevalent type of drug resistance was to tetracycline at 95.0%, and the least was to gentamicin at 21.7%. The prevalences of antimicrobial resistance among the tested antibiotics were significantly different (p<0.001). A statistically significant difference was observed between the prevalence of the tet genes (p<0.001). The tetD positive isolates and antibiotic sensitivity to tetracycline showed statistical significant differences (p=0.017).ConclusionsConsidering the results, tetA is the most common tetracycline resistance gene, and the presence of tetD and antibiotic sensitivity to tetracycline had a significant relationship in E. coli isolated from colibacillosis infections.
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