인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
This study investigated the pathogenic and antimicrobial resistance characteristics of Aeromonas veronii isolated from imported guppy (Poecilia reticulata) exhibiting dropsy symptoms in a hatchery in Gunsan, Korea. The affected fish showed scale protrusion, hemorrhage, and abnormal swimming behavior, with approximately 80% cumulative mortality. The isolate was identified as A. veronii using 16S rRNA sequencing, species-specific PCR, and gyrB gene analysis. Pathogenicity was evaluated by immersion challenge, resulting in dose-dependent mortality. At 3.2 × 10⁵ CFU/mL, 60% mortality was observed, and the LD₅₀ was estimated to be ≤ 3.2 × 10⁵ CFU/mL. The strain harbored virulence genes including act, aerA, and hlyA. Antimicrobial susceptibility testing based on CLSI (2018) guidelines indicated reduced susceptibility to several antibiotics. Notably, resistance was inferred for Meropenem and Ciprofloxacin based on inhibition zone diameters. The tetracycline resistance gene tet(A) was also detected. These findings suggest that imported ornamental fish may serve as reservoirs of antimicrobial-resistant A. veronii, highlighting the need for continuous surveillance and prudent antimicrobial management in aquaculture.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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UCI(KEPA) : I410-151-26-02-096548662