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.

对养殖场的患病鱼体进行解剖观察及病原分离鉴，发现此病症是由粘孢子虫寄生并继发细菌性引起的疾病。