四川省成都市的3个国营渔场和2个良种场在“七五”期间,引进和推广了白鲫、罗非鱼、革胡子鲶、丰鲤等当地具有生长优势和较好经济效益的优良鱼类的养殖。目前这些优良品种已经在全市15个区市县的渔业生产单位和养鱼专业户中推广养殖,取得了明显的经济效益。同时各国营渔场和良种场充分发挥技术优势,培育了大批量的良种鱼苗和鱼种,5年来 During the “Seventh Five-Year Plan” period, three state-owned fisheries and two seed farms in Chengdu, Sichuan Province introduced and promoted the excellent growth advantages and good economic benefits of white carp, tilapia, Fish farming. At present, these fine varieties have been popularized in fishery production units and fish farming households in 15 districts, cities and counties of the city, and have achieved obvious economic benefits. At the same time, all state-run fishing grounds and seed farms have given full play to their technological advantages and have cultivated large quantities of seedlings and fingerlings of fine varieties. In the past 5 years