2006年3月上旬邢台、石家庄部分池塘养殖发生死鱼事故,死亡率达30%~50%,给养殖者造成重大损失。涉及的养殖品种有草鱼、鲤鱼、斑点叉尾回、鲢鱼等,根据现场调查和部分渔场的报告情况,发生病害的鱼类主要症状有:鱼体倾斜,缓游于水面,气泡多的鱼类不能下沉;尾鳍出血、出现气泡、 Early March 2006 Xingtai, Shijiazhuang, part of the pond aquaculture dead fish accident occurred, the mortality rate of 30% to 50%, causing serious losses to farmers. Grass carp, common carp, catfish, silver carp and so on. According to the field survey and the report of some fisheries, the main symptoms of diseased fish include: tilted fish, swimming on the surface of the water, many fish with bubbles Class can not sink; caudal fin bleeding, there bubbles,