一、看行动 鱼病发生时,常伴随着各种异常活动现象。池中鱼类受到寄生虫侵袭和刺激,往往出现不安状态,如鱼受到鲺侵袭后,表现为上跳下窜,一时急剧狂游;受鲢碘泡虫侵袭的白鲢,尾部上翘,鱼在水中狂游乱窜,抽搐地打圈子;受中华鳋侵袭的鱼的尾鳍上叶往往露出水面,在水体表层打转或狂游;鱼类因农药或工业废水中毒时,也会出现兴奋、跳跃和冲撞现象,而后进入麻痹阶段。 First, see the action fish disease occurs, often accompanied by a variety of abnormal activity. The fish in ponds are attacked and stimulated by parasites, and often appear in an uneasy state. For example, when a fish is attacked by a bird, the fish jumps and runs down, causing rapid wild wandering. Silver carp attacked by silver carp Ipomoea, tail upturned, fish In the water wandering, jerked circle; tails of the fish caught by the Chinese catfish often appear on the surface of the leaves, spinning or swimming in the surface water; fish due to pesticide or industrial wastewater poisoning, there will be excitement, jumping And collision phenomenon, and then into the paralysis phase.