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三代虫、拟指环虫病是整个鳗鲡养殖过程中最常见而又最麻烦的寄生虫性疾病，它主要寄生在鳗鱼的鳃部，引起鳗鱼鳃部损伤、出血、粘液分泌增多，导致鳗鲡呼吸困难，离群独游，挂台无活力，食欲不 振，烂鳃，若不及时治疗将造成大批量死亡。 在目前整个的鳗鲡养殖过程中，患三代?
Three generations of worms, intended to be echinococcosis breeding process is the most common and most troublesome parasitic diseases, it is mainly parasitic in the gills of eels, causing eel gill injury, bleeding, increased mucus secretion, resulting in eel 鲡 breathing difficulties , Outbound solitary tour, hanging platform vitality, loss of appetite, rotten gills, if not treated in time will result in mass deaths. In the current eel breeding process, suffering from three generations?