欧洲鳗鲡"狂奔病"的病因探讨

利用组织病理、微生物、血液电解质、寄生虫检查方法对欧鳗"狂奔病"进行分析，发现无论是淡水养殖还是海水网箱养殖，病鳗的组织病理变化基本一致，鳃、肠破坏较为明显，肝、脾、肾、心均有不同程度的充血.从微生物学的分析来看，病毒的检出率并不高，形态也不一致，细菌和寄生虫的感染多样化.病鳗的血液电解质检查结果较为一致，主要以氯离子降低为主，下降幅度在30％～50％之间.由此认为本病不象是病毒、细菌和寄生虫所致.

Etiologic investigation of "mad rush malady" of European eel

Using the methods of tissue pathology, microorganism , blood electrolyte assay and parasite examination the etiology of "mad rush malady" of European eel was investigated. It has been found that the general pathological changes were remarkable destructions of branchia and bowels and the congestion of liver, spleen, kidney and heart regardless of fresh water or seawater aquiculture in net box. There were different kinds of infections such as bacterial , virus or parasite in different individuals. Moreover the decrease of chlorine ion concentration by 30 % ～50 % was observed in different individuals. Thus it is considered that the "mad rush malady" of European eel should not be caused from virus, bacteria or parasite.