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鳜鱼是一种名贵的淡水鱼,随着养殖密度的增加,鱼病也相应增多,死亡率高。给养殖户造成了很大经济损失,严重地挫伤了渔民养殖的积极性。因此,做好鱼病的防治工作尤为重要。现简单介绍鳜鱼常见疾病及防治方法。1白皮病 发病时间一般在5～8月份,尤其是夏花分塘前后,由于操作不慎或有大量车轮虫等原生动物寄生时造成鱼体受伤,病原菌乘虚而入。发病初期,病鱼尾柄出现白点,并迅速蔓延,以至背鳍及臀鳍间的体表和尾鳍处都发白。最后病鱼头朝下,尾鳍向上,与水面垂直,不久死去。
Anchovy is a rare freshwater fish, with the increase of breeding density, a corresponding increase in fish disease, high mortality. Which caused great economic losses to farmers and severely damped the enthusiasm of fishermen. Therefore, to do a good job in prevention and treatment of fish diseases is particularly important. Now a simple introduction to common diseases and prevention and treatment of catfish. 1 white skin disease onset time is generally 5 to August, especially before and after the summer flower sub-pond, due to inadvertent operation or a large number of car parasites and other protozoan parasites caused by fish injury, pathogenic bacteria take advantage of. In the early stages of disease, whiteheads appear on the tail of the diseased fish and are rapidly spread to the surface of the dorsal and anal fins and whitish at the caudal fin. Finally sick head down, caudal fin up, vertical with the water, and soon died.