近年来,随着产业结构调整步伐的加快,各地纷纷出台了大力发展种养殖业的优惠政策,其中水产养殖业也成了人们的投资热点。各地方充分利用低洼、荒地和坑塘开发改造成鱼塘,但有些新开鱼塘的放养环节没有处理好,往往造成池塘保水性能差,水质清瘦,鱼类的生长情 In recent years, with the acceleration of industrial restructuring, various localities have promulgated preferential policies to vigorously develop breeding and breeding industries, and aquaculture has also become a hot spot for investment. Various places make full use of low-lying, wasteland and pit pond development and transformation into fish ponds, but some newly-opened ponds stocking links are not handled properly, often resulting in poor water retention ponds, water quality, fish growth