中国对虾幼体的聚缩虫病是对虾育苗中常见的、危害较大的虾病，它感染速度快，几天之内便可使培育池中的对虾幼体８０％以上感染，如不及时防治，可导致育苗失败。 一、病原体 对虾幼体聚缩虫病的病原体常见种是树状聚缩虫，属原生动物门、纤毛虫纲、缘毛目、钟虫科。聚缩虫寄 Juvenile Chinese shrimp larvae trichomoniasis shrimp breeding is common, more harmful shrimp disease, its infection rate, within a few days can make breeding ponds more than 80% of shrimp larvae infection, if not timely control, Can lead to nursery failure. First, the pathogens Penaeus lactiflora common pathogens of trichomoniasis polycyclic dendrites, is a protozoan door, ciliates Gang, margin hair head, bellworm. Retract the worm