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Biochemical characteristics and antimicrobials susceptibility of pathogenic Streptoccus spp. isolated from respiratory tract of Thoroughbred horses in Jeju, Korea

제주지역에서 사육중인 더러브렛 말 호흡기로부터 분리된 병원성 Streptoccus spp.의 생화학성상 및 약제감수성 양상

  • Choi, Seong-Kyoon (College of Veterinary Medicine and Institute of Equine Medicine, Kyungpook National University) ;
  • Kim, Seong-Guk (Gyeongbuk Veterinary Service Laboratory) ;
  • Cho, Gil-Jae (College of Veterinary Medicine and Institute of Equine Medicine, Kyungpook National University)
  • 최성균 (경북대학교 수의과대학 말의학연구소) ;
  • 김성국 (경상북도가축위생시험소) ;
  • 조길재 (경북대학교 수의과대학 말의학연구소)
  • Received : 2011.08.01
  • Accepted : 2011.09.02
  • Published : 2011.09.30

Abstract

This study carried out to investigate the pathogenic Streptococcus spp. isolated from respiratory tract of Thoroughbred in Jeju province. The specimens were collected from nasal mucosa using a culture swab from 113 Thoroughbred horses. Suspected colonies were selected onto blood and MacConkey agar plate, and identified by standard biochemical properties using Vitek 2 system and PCR method. In this study, we isolated S. equi (n=6), S. zooepidemicus (n=31), S. equisimilis (n=5), S. dysgalactiae (n=2), S. agalctiae (n=1), non identified ${\beta}$-hemolytic Streptococcus spp. (n=1) from Thoroughbred horses. In antimicrobial susceptibility test, it showed a high sensibility in the most of antimicrobial except for neomycin, streptomycin, spectinomycin, erythromycin and clindamycin. These results will provide the basic information to establish control measures for the treatment and prevention of respiratory disease by pathogenic Streptococcus spp. in Thoroughbred horses in Korea.

Keywords

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