长期以来,水产养殖的病害问题一直困扰着水产养殖的发展,尤其是近几年来,病害的面积在不断扩大,病害的种类在不断上升,严重影响了养殖效益和养殖户的生产积极性。从多年来防治病害情况分析,引起水产病害的因素较多,归纳起来,主要是养殖品种、水质、饲料、养殖技术、鱼病防治技? For a long time, the problem of aquaculture diseases has plagued the development of aquaculture. Especially in recent years, the area of ​​diseases is expanding and the types of diseases are on the rise. This has seriously affected breeding benefits and farmers’ enthusiasm for production. From the analysis of disease prevention and control over the years, causing more factors of aquatic diseases, summed up, mainly aquaculture species, water quality, feed, aquaculture technology, fish disease prevention and control technology?