近几年来,随着我国水产养殖业迅速发展,养殖规模不断扩大,集约化程度不断提高,病害问题已逐渐成为影响整个行业持续发展的“瓶颈”,据初步统计,目前我国人工养殖的鱼、虾、贝、藻、鳖、蛙等水产动植物的主要病害就有200余种以上。1998年,病害平均发病损失率在15%左右,损失产值 In recent years, with the rapid development of aquaculture in our country, the scale of aquaculture continues to expand and the degree of intensification continues to increase. The disease problem has gradually become the “bottleneck” affecting the sustainable development of the entire industry. According to preliminary statistics, at present, Shrimp, shellfish, algae, turtle, frogs and other aquatic plants and animals have more than 200 kinds of major diseases. In 1998, the average incidence of disease loss rate of about 15%, loss of output value