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近年来 ,由于环境污染加剧以及种质退化等原因 ,吉林省养殖鱼类病害日趋严重 ,成为制约精养渔业持续发展的主要因素之一。与以往相比 ,如今池塘用药在数量和种类上都发生了较大的变化 ,在渔需物资经营中的比重正逐年加大。１９９９年初 ,吉林省水产养殖病害防治中心（企业注册
In recent years, due to the exacerbation of environmental pollution and the deterioration of germplasm, the disease of farmed fish in Jilin Province is becoming more and more serious, which has become one of the main factors restricting the sustainable development of intensive fisheries. Compared with the past, the number and type of pond medicines have undergone major changes in the past, and their proportion in the operation of fishery materials has been increasing year by year. In early 1999, Jilin Province aquaculture disease prevention and control center (business registration