牙鲆体表溃烂综合症病理组织观察  

Observations on the Histopathology of the External Ulcerative Disease of Japanese Flounder, Paralichthys Olivaceus

作　　者：周丽[1] 战文斌[1] 宋微波[1] 宋春华 

机构地区：[1]青岛海洋大学教育部水产养殖开放实验室,青岛266003 [2]山东大学威海分校水产系,威海264200

出　　处：《青岛海洋大学学报（自然科学版）》2000年第4期593-597,共5页Journal of Ocean University of Qingdao

基　　金：教育部重点项目!991 84;"长江学者奖励计划"

摘　　要：报道了牙鲆养殖过程中发生的体表溃烂综合症的病理组织变化。该病的病原有盾纤类纤毛虫指状拟舟虫和致病菌兔莫拉氏菌。指状拟舟虫不仅寄生于牙鲆体表皮肤、鳍 ,亦可侵入腹腔、肾脏、肌肉、心脏甚至脑。兔莫拉氏菌大量寄生于心脏血液中 ,随血液循环至各组织器官 ,引起牙鲆肝脏、肾脏及脾脏组织病变。指状拟舟虫和兔莫拉氏菌共同导致牙鲆死亡。An external ulcerative disease, which frequently occurred in Japanese flounder, Paralichthys olivaceus, now cultured in artificial propagation facilities along the coasts of Shandong, China, has caused mass mortalities in recent years. Histopathological study showed that the diseased fish had hyperaemia and hemorrhage in the ulcerated muscle tissue as well as decoloration of the skin, especially among fry and juveniles. Many ciliates were found not only on the body surface but also inside the skin, scale pocket, fin, muscle, peritoneal cavity, blood and characteristically brain of the Japanese flounder. The ciliate was a pathogen to flounder and was identified as Paralembus digitiformis, a marine facultative parasitic scuticociliatid ciliate. Meanwhile, a bacterium Moraxella cuniculi was also purely isolated from the heart of the naturally infected flounder and also proved to be a pathogenic bacterium for flounder by experimental infection.

关 键 词：牙鲆 体表溃烂 病理组织 指状拟舟虫 兔莫拉氏菌 纤毛虫 

分 类 号：S941.514[农业科学—水产养殖] Q959.486[农业科学—水产科学]