大菱鲆纤毛虫病的病理学  

Pathology of scuticociliatosis in Scophthalmus maximus L.

作　　者：崔龙波[1] 周雪莹[1] 程敬伟 李永胜 马家好 

机构地区：[1]烟台大学生物化学系,山东烟台264005 [2]利洋水产科技有限公司,广东广州518518

出　　处：《中国水产科学》2008年第4期622-629,共8页Journal of Fishery Sciences of China

基　　金：山东省科技攻关计划项目资助(No.2004GG2205137)

摘　　要：应用组织学方法研究大菱鲆(Scophthalmus maximusL.)纤毛虫病的病理变化。发现在患病鱼皮肤及鳍表皮下结缔组织及溃烂处、肛门周围组织、肌纤维间、鳃丝内、脑、脊髓、眼球壁及眼球腔内、肝脏、胰腺腺管间、肾脏、脾脏被膜、胃壁、肠壁血管、膀胱壁、性腺周围及性腺内、内脏各器官间结缔组织,以及血液、脑脊液、腹水、胃液及肠液等体液内均存在纤毛虫。主要病理变化出现在有大量纤毛虫寄生的部位,特别是皮肤、鳍、肛门周围、鳃、脑、脊髓、眼球、肝脏、胃壁等处,最终症状为组织淤血、出血,细胞坏死、崩解,大量淋巴细胞增生。但当上述组织中纤毛虫数量较少时,其病理变化并不明显。本研究表明,纤毛虫入侵大菱鲆没有明显的组织选择性。Scuticociliate is a kind of organisms harmful to the marine breeding and scuticociliatosis is suggested to be one of the most important diseases in industrial fish-breeding. Pathological study on the disease will be helpful to understand the mechanism of scuticociliatosis of turbot （Scophthalmus maximus L）. Pathological changes on scuticociliatosis of the turbot were studied with histological methods. Scuticociliates were found in connective tissue and ulcerative parts in skin and fin, tissue around anus, tissue around muscle fibers, gill filament, brain, spinal cord, wall and cavity of eyeball, liver, tissue around gland duct of pancreas, kidney, adventitia of spleen, wall of stomach, blood vessel in wall of intestine, wall of bladder, gonad and tissue around gonad, and connective tissue around all organs of viscus. They were also found in body fluid, such as blood, cerebrospinal fluid, ascites, gastric juice and intestinal juice. Obvious pathological changes occurred in positions where a large number of ciliates invaded, especially in skin, fin, tissue around anus, gill, brain, spinal cord, eyeball, liver and wall of stomach. The invaded fish showed congestion and hemorrhage, necrosis and breaking up of cells, and hyperplasia of lymphocytes. The pathological changes, however, were not visible in tissues when a small quantity of ciliates invaded. The study suggests that ciliates have no obvious tissue selectivity to the turbot.

关 键 词：大菱鲆 纤毛虫病 纤毛虫 病理学 

分 类 号：S941.51[农业科学—水产养殖]