양식 넙치, Paralichthys olivaceus에서 분리된 Edwardsiella tarda, Vibrio spp., Streptococcus spp.의 항균제 내성 경향
Antimicrobial resistance of Edwardsiella tarda, Vibrio spp., and Streptococcus spp. isolated from olive flounder Paralichthys olivaceus
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초록
넙치 병원성 세균에 대한 항균제 내성율과 다제내성을 조사하고자 연구를 수행하였다. 우리나라의 양식 넙치 (Paralichthys olivaceus)에서 161균주가 분리되었고 분리균주에는 Edwardsiella tarda (n=32), Vibrio ichthyoenteri (n=37), Vibrio spp. (n=54), Streptococcus parauberis (n=28) 그리고 Streptococcus spp. (n=10)가 포함되었다. E. tarda 분리균주는 tetracycline (84.4%)과 oxolinic acid (71.9%)에 높은 내성율을 나타내었고 V. ichthyoenteri와 Vibrio spp.는 ampicillin (94.6%, 81.5%)과 tetracycline (56.8%, 42.6%) 순서로 높은 내성율을 나타내었다. S. parauberis 분리균주는 ampicillin (57.1%), tetracycline (57.1%), erythromycin (35.7%) 순서로 높은 내성율을 보였다. E. tarda의 84.4%, V. ichthyoenteri의 73.0%, Vibrio spp.의 57.4%, S. parauberis의 42.8% 그리고 Streptococcus spp.의 70.0%가 2종류 이상의 항균제에 다제내성을 나타내었다.
Abstract
In this study, we carried out research on the level of single and multi-drug resistance of bacteria isolated from cultured flounder Paralichthys olivaceus. One hundred sixty one bacteria were isolated from cultured olive flounder Paralichthys olivaceus in Korea and the isolates consisted of Edwardsiella tarda (n=32), Vibrio ichthyoenteri (n=37), Vibrio spp. (n=54), Streptococcus parauberis (n=28) and Streptococcus spp. (n=10). These E. tarda isolates were highly resistant in the order of tetracycline (84.4%) and oxolinic acid (71.9%). V. ichthyoenteri and Vibrio spp. showed resistance ampicillin (94.6% and 81.5%) and tetracycline (56.8% and 42.6%). S. parauberis isolates were resistant ampicillin (57.1%), tetracycline (57.1%) and erythromycin (35.7%). Of the isolates, 84.4% of E. tarda, 73.0% of V. ichthyoenteri, 57.4% of Vibrio spp., 42.8% of S. parauberis and 70.0% of Streptococcus spp. isolates exhibited multi-drug resistance against more than two antibiotics.
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