Korean Journal of Veterinary Service (한국동물위생학회지)

The Korean Society of Veterinary Service (한국동물위생학회)
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Serotyping and antibiotic susceptibility of Salmonella species from pigs with rectal stricture found in slaughterhouses

도축장 출하 직장협착 돼지에서 분리된 살모넬라균 혈청형 및 항생제 감수성

  • Jiyeon Kim (Health and Environment Research Institute of Gwangju) ;
  • Jinju Gwak (Health and Environment Research Institute of Gwangju) ;
  • Doori Seo (Health and Environment Research Institute of Gwangju) ;
  • Jaegi Lee (Health and Environment Research Institute of Gwangju) ;
  • Daewoong Lim (Health and Environment Research Institute of Gwangju) ;
  • Hana Kim (Health and Environment Research Institute of Gwangju) ;
  • Jiyeong Park (Health and Environment Research Institute of Gwangju) ;
  • Jongwoog Choi (Health and Environment Research Institute of Gwangju) ;
  • Byeongcheol Yoon (Health and Environment Research Institute of Gwangju)
  • 김지연 (광주광역시보건환경연구원) ;
  • 곽진주 (광주광역시보건환경연구원) ;
  • 서두리 (광주광역시보건환경연구원) ;
  • 이재기 (광주광역시보건환경연구원) ;
  • 임대웅 (광주광역시보건환경연구원) ;
  • 김하나 (광주광역시보건환경연구원) ;
  • 박지영 (광주광역시보건환경연구원) ;
  • 최종욱 (광주광역시보건환경연구원) ;
  • 윤병철 (광주광역시보건환경연구원)
  • Received : 2023.04.30
  • Accepted : 2023.06.13
  • Published : 2023.06.30
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Abstract

From November 2021 to October 2022, 151 pigs were discarded due to the suspected salmonellosis, when assessed by antemortem inspection at slaughterhouses in Gwangju. Among them, 85 cases shown with the rectal stricture were confirmed to be infected with Salmonella spp, when assessed by postmortem inspection and Salmonella-oriented culture in the laboratory, accounting for 56.3% of the carcass discard cases. Salmonella spp. were isolated in 58 cases (68.2%) out of 85 total discard cases. As for serotyping of the Salmonella isolates, 28 cases (48.3%) belonged to serogroup B and 28 cases (48.3%) belonged to serogroup C, those were the most frequent isolates, and 2 cases (3.4%) belonged to serogroup E. The most prevalent serotype was Rissen (39.7%), followed by I4,[5],12:i:-(37.9%), Derby (8.6%), Bareilly (5.2%), Infantis (3.4%), Give (3.4%), and Typhimurium (1.7%). The 58 isolates of salmonellae showed resistance to tetracycline (63.8%), chloramphenicol (56.9%), ampicillin (53.4%), and ampicillin-sulbactam (51.7%). S. Rissen showed resistance to chloramphenicol (82.6%), ampicillin (52.2%), ampicillin-sulbactam (52.2%), and tetracyclin (47.8%). S. I4,[5],12:i:-was resistant to tetracycline (90.9%), ampicillin (81.8%), ampicillin-sulbactam (77.3%), and chloramphenicol (59.1%). Among the isoates, S. Bareilly (3 strains), S. Infantis (2 strains), S. Give (2 strains), S. Rissen (3 strains), and S. I4,[5],12:i:- (1 strain) showed no resistance to the tested antimicrobials. As for the prevalence of the antibiotic resistance pattern, AM-SAM-TE-C was the most common, which was shown in 15.5% of S. Rissen. At second, the resistance pattern was occurred as AM-SAM-TE (12.1%) and AM-SAM-CF-CZ-FOX-CTX-NA-TE-C (12.1%), respectively in the case of S. I4,[5],12:i:-.

Keywords

Acknowledgement

이 논문은 2022년도 광주광역시 보건환경연구원 연구사업비 지원으로 수행하였습니다.

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