By dissecting moribund fishes and isolationg the pathogens, we found that the “infection syndrome” was a complex polyinfection caused by Myxosporea and secondary bacterial infection.

对多个养殖场鱼体进行解剖观察及原分离鉴，现此症多是由粘孢子虫寄生细菌性感染而引起疾。