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病原或病因病原为鲤疱疹病毒(Herpes-virus cyprini),为有囊膜的DNA病毒,病毒最适传播温度为为15℃~20℃。临床症状早期病鱼体表出现乳白色斑点,后变厚、增大,逐渐在鱼体形成一层白色粘液层。随着病情发展,粘液由乳白色逐渐转变为石蜡状,长到一定程度后可自行脱落,但又会重新长出。如石蜡样物质蔓延到鱼体的大部分时,会严重影响鱼的正常生长,使鱼消瘦,并可影响亲鱼的性腺发育。流行病学流行于秋末至春初温度较低的高密度养殖池塘,当水温升高到15℃以上后,病鱼可自愈,一般不会
The pathogen or etiological agent is herpes-virus cyprini, which is an enveloped DNA virus. The optimal virus transmission temperature is 15 ° C ~ 20 ° C. Early symptoms of clinical symptoms of fish appear milky spots, after the thickening, increasing, gradually forming a layer of white mucus layer in the fish. As the disease progresses, the mucus gradually changes from milky white to paraffin-like, and when it reaches a certain level, it can fall off on its own, but it will grow again. When paraffin-like substances are spread to most parts of the fish body, the normal growth of the fish will be severely affected, causing the fish to lose weight and may affect gonadal development of the broodstock. Epidemiology prevalence In late autumn to early spring, the temperature is lower in high-density aquaculture ponds, when the water temperature rises above 15 ℃, the diseased fish can heal, generally do not