| Antimicrobial resistance and frequency of BlaTEM in Escherichia coli isolated from non-diarrheic and diarrheic piglets |
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Jae Won Byun1, Ha Young Kim1, Byeong Yeal Jung1, You Chan Bae1, Wan Kyu Lee2 |
1Animal Disease Diagnostic Division, Animal, Plant & Fisheries Quarantine and Inspection Agency
2College of Veterinary Medicine, Chungbuk National University |
| 정상돈과 설사돈에서 분리한 대장균의 항균제 내성 및 BlaTEM 분포 조사 |
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변재원1, 김하영1, 정병열1, 배유찬1, 이완규2 |
1농림수산검역검사본부 질병진단과
2충북대학교 수의과대학 |
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| Abstract |
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Antimicrobial resistance is one of the most concerns in pig industry. Escherichia (E.) coli have been used for the indicator to monitor the antimicrobial resistance. In this study, 321 E. coli from diarrheic and non-diarrheic piglets were tested for antimicrobial resistance and frequency of $Bla_{TEM}$. In non-diarrheic piglets, they were resistant to oxytetracycline (93%), streptomycin (92%) and sulfadiazine (90%) but susceptible to ceftiofur (99%), colistin (97%), and enrofloxacin (82%). The isolates from diarrheic piglets were resistant to enrofloxacin (72.9%), ceftiofur (17.6%), and colistin (11.3%), whereas the resistance was 1%, 18% and 3% in case of non-diarrheic piglets, respectively. The resistance for amoxicillin/clavulanic acid (54.1%) and ceftiofur (22%) was high in isolates from post-weaning piglets. The resistance for colistin was 15.2% in nursery piglets. Seventy-three percent of isolates from diarrheic piglets showed high multidrug resistance profile (more than 13 antimicrobials) compared to those from non-diarrheic pigs in which 71% of isolates showed moderate multidrug resistance profile (7 to 12 antimicrobials). The frequency of $Bla_{TEM}$ in E. coli from non-diarrheic and diarrheic piglets was 57% and 69%, respectively. The results might provide the basic knowledge to establish the strategies for treatment and reduce antibiotic resistance of E. coli in piglets. |
| Key Words:
antimicrobial resistance, $Bla_{TEM}$, diarrhea, E. coli, piglets |
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