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鳃病,为草鱼常见病之一。引起草鱼鳃病的病原体主要有粘细菌、原生动物和中华鳋三类。病因不同,用药也不一样,要予以辨别。刁汊湖养殖场渔民在长期实践中总结出三看经验。一、看鳃病部位。尽管鳃病病灶都在鳃上,但病因不同,病灶所在部位也有差别。粘细菌引起的烂鳃,开有“天窗”即鳃盖内表皮被腐蚀成半透明的小窗;而原生动物引起的鳃病,鳃瓣淤血、多粘液、鳃丝尖端往往腐烂成半月形;中华鳋引起的鳃病,鳃丝末端肿大,并挂有蝇蛆。
Gill disease, one of the common diseases of grass carp. Pathogens causing grass gill disease are mainly myxozoa, protozoa and Chinese 鳋 three categories. Different causes, medication is not the same, to be distinguished. Diaoyu Lake farms fishermen summed up in the long-term practice of three to see the experience. First, look gill disease parts. Although gill lesions are in the gills, but the etiology is different, there are differences in the location of the lesion. Sticky bacteria caused by rotten gills, open a “skylight” that is the epidermis of the gill cover is corroded into small translucent windows; and protozoan caused by gill disease, gill flap congestion, mucus, gill tip tip often decayed into a half moon; Chinese gossamer caused gill disease, gill filaments swollen, and hanging maggots.