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打印病是鲢、鳙鱼的主要病害之一,对鱼种、成鱼和亲鱼阶段都能感染。据我们调查,严重的发病鱼池其感染率可高达80％。我国各地都有发现,特别是华中和华北地区比较流行,有些地区河道中也有发现;一年四季都有,而以夏秋两季最易发生。严重影响鱼种和成鱼的生长及亲鱼的催情产卵。 打印病的症状是:鱼种和成鱼患病的部位通常在肛门附近的两侧,或尾鳍基部,极少数在身体前部;亲鱼患病没有固定部位,全身各处都可以出现病灶。初期症状是皮肤及其
Print disease is one of the major diseases of silver carp and bighead carp, which can be infected by fish species, adult fish and broodstock. According to our investigation, the incidence of serious incidence of fish ponds up to 80% infection rate. It has been found all over China, especially in Central China and North China. In some areas, there are also found in rivers. There are all the year round and the easiest to occur in summer and autumn. Seriously affect the growth of fish species and adult fish and aphrodisiac spawning. Symptoms of printing disease are: fish species and adult fish are usually located on both sides of the anus near the anus, or caudal fin base, a very small number in the front of the body; broodstock ill no fixed sites, the whole body can appear lesions. The initial symptoms of the skin and its