Journal of fish pathology (한국어병학회지)

The Korean Society of Fish Pathology (한국어병학회)
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Studies on the overinflation of the Cardiac Stomach in Sterlet Sturgeon Acipenser ruthenus, fingerlings

양식 스털렛 철갑상어, Acipenser ruthenus 치어의 위 팽창 증후군에 관한 연구

  • Park, Sung-Woo (Department of Aquatic life Medicine, Kunsan National University) ;
  • Yu, Jin-Ha (Gyeonggi Province Freshwater Fisheries Research Institute) ;
  • Han, Jung-Jo (Fishery Products Quality and Safety Division, Honam regional Office, Animal, Plant and Fisheries Quarantine and Insepection Agency)
  • 박성우 (군산대학교 수산생명의학과) ;
  • 유진하 (농림수산검역검사본부 호남지역본부 수산물 안전과) ;
  • 한정조 (경기도 민물고기 연구소)
  • Received : 2012.01.09
  • Accepted : 2012.04.05
  • Published : 2012.04.30
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Abstract

Overinflation of cardiac stomach occurred in farmed sterlet sturgeon (Acipenser ruthenus) fingerlings. Affected fish congregated and swam upside-down near the edges of the tanks with abdominal distension. When pressed the dilated abdomen, the fish often exhibited a normal swimming pattern for some time, then resumed their characteristic upside-down swimming patterns. Internally, the fish showed abdominal dropsy and dilated stomach filled with yellowish granular contents. When the contents in the stomach, fish feed, water and excrement in the farm inoculated on Sabouraud destrose agar (SDA) at $25^{\circ}C$ for 48 hr. Candida sp. were isolated except from the feed. Candida sp. in excrement or water in the farm may enter into the stomach with feed and then produce gases in the metabolic process, which in turn may cause the stomach overinflation.

인공종묘 생산 철갑상어 사육과정에 복부팽만을 특징으로 하는 질병이 발생하였다. 병어는 위와 소화관의 가스의 이상 축적에 의한 것으로 특히, 위의 분문부에서의 가스 축적이 현저하기 때문에 이상 유영을 하다가 폐사하게 된다. 병어의 위, 양어지의 배출수와 잔사에서는 원인체로 추정되는 Candida sp.가 검출되었다. 먹이와 함께 섭취된 Candida가 대사 과정 중에 발생하는 가스가 위에 축적됨으로서 위가팽창하게 되고, 일부는 식도와 부레로 이동한 것으로 생각된다.

Keywords

References

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