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早春温度低 ,鱼种和成鱼易患白云病。病鱼体表多呈灰白色和淡青色。病原体吸收鱼体营养 ,分泌毒素。在头部、鳍条及体表形成一层白色米汤状浆膜 ,此病一年四季均可发生 ,尤其是晚冬和早春发病率最高。这种病菌寄生在鱼体伤处的皮肤内 ,还可寄生在受伤的鳃丝上。患了白云病的鱼
Early spring temperature is low, fish and adult fish susceptible to cloud disease. Fish body surface mostly pale and light cyan. Pathogen absorption of fish nutrition, secretion of toxins. In the head, fin and body surface layer of white rice-like serosa, the disease can occur all year round, especially in late winter and early spring the highest incidence. This germ is parasitic in the skin of fish wounds and can also be parasitic on injured gill filaments. Suffering from white clouds of fish