2005年春节前后,郑州地区养殖团头鲂的池塘普遍发生鱼病,典型症状为体表两侧形成对称白斑,发病池塘若治疗控制不及时,死亡量能达到60%以上。成鱼、鱼种池均有发生,在郑州北郊养殖团头鲂较集中的区域,发病池塘接近50%。由于此病发病快、死亡率高,往年并不常见,渔民普遍认为是一? Before and after the Spring Festival in 2005, fish pond disease occurred in the ponds of Tamarix ramosissima in Zhengzhou. The typical symptoms were symmetrical white spots on both sides of the body surface. If the treatment pond was not controlled timely, the death rate could reach over 60%. Into the fish, fish ponds have occurred in the northern suburbs of Zhengzhou bazaar farming more concentrated areas, the incidence of ponds close to 50%. Due to the rapid onset of the disease, high mortality, not common in previous years, fishermen generally considered one?