在河蟹的育苗过程中，最容易患的疾病是果枝虫和聚缩虫病。用玻璃杯取出病菌在光照下，能看见病苗四周有白毛状的携带物。在显微镜下虫体就一目了然。当水体中有大量存在时对蟹苗的危害很大。来源可能是水体中原已存在，再者丰年虫投喂时携带进来。发现较多时要针对治疗。方法 In the process of raising crabs and crabs, the most common diseases are fruit twigs and trichomoniasis. Remove the bacteria with a glass in the light, you can see the white hair around the disease carriers. Insects on the microscope will be clear at a glance. When there is a lot of water there is a great harm to the crab seedlings. The source of water may be Zhongyuan already exists, and then fed into the Artemia. Found more time to treatment. method