Biochemical characteristics of Aeromonas hydrophilia isolated from Jackass Penguins (Spheniscus demersus) and Capelins (Mallotus villosus)

Kim, Kyoo-Tae; Cho, Sung-Whan; Son, Hwa-Young; Ryu, Si-Yun

Korean Journal of Veterinary Research 2005;45(4):563-568.

Kyoo-Tae Kim¹, Sung-Whan Cho², Hwa-Young Son², Si-Yun Ryu²

¹Wild Animal Hospital, Daejeon Zoo Land
²College of Veterinary Medicine, Chungnam National University

자카스펭귄과 열빙어에서 분리된 Aeromonas hydrophilia의 생화학적 특성

김규태¹, 조성환², 손화영², 류시윤²

¹대전동물원 동물병원
²충남대학교 수의과대학

Abstract

The present study was conducted to investigate biochemical characteristics and antimicrobial susceptibility of Aeromonas hydrophilia isolated from Jackass penguins (Spheniscus demersus) of zoo and capelins (Mallotus villosus). Seven of Jackass penguins showed anorexia, depression with seriously greenish vomiting for a few days, but resulted in 4 deaths although extensive treatment was carried out by zoo veterinarians. From the 18 samples composed of organs or feces from dead or live Jackass penguins and capelins, 4 (22.2%) Aeromonas hydrophilia were isolated and Bacillus spp, Staphylococcus aureus, Staphylococcus auricularis, Staphylococcus cohnii and Enterobacter aminigenus were also identified. Antimicrobial susceptibility tests of Aeromonas hydrophilia showed that all isolates were susceptible to amikacin, gentamicin, kanamycin, norfloxacin and trimethoprim- sulfadimethoxazole. However, all isolates were resistant to the following antimicrobials; ampicillin, bacitracin, c ephalothin, cefazolin, noboviocin, penicillin and vancomycin.

Key Words: Aeromonas hydrophilia, antimicrobial susceptibility, capelin, Jackass penguin