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牙鲆的疾病主要有病毒性疾病、细菌性疾病和寄生虫性疾病以及其他病害。一、病毒性疾病（一）病毒性表皮增生症（VEH）该病发生在牙鲆苗种生产时期，仔鱼孵出后１０～２５天（７～１０毫米）、营底栖生活之前，发病时个体长为７～８毫米，发病后仔鱼多在１～３周内基本上全部死
Flounder disease mainly viral diseases, bacterial diseases and parasitic diseases and other diseases. First, the viral diseases (A) of viral epidermal hyperplasia (VEH) The disease occurs in the production of Japanese flounder seedlings, larvae larvae after 10 to 25 days (7 to 10 mm), camp benthic life before and when the disease Individual length of 7 to 8 mm, after the onset of larvae are basically all died within 1 to 3 weeks