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我省地处夏短冬长的严寒地区,受自然气候的限制,水产养殖期短,池塘养鱼产量一直不高,经济效益不明显,虽然个别有亩产300公斤以上的高产塘,鲢鳙鱼的产量却占主要部分。而鲢鳙鱼从鱼种到成鱼,既不太受群众欢迎,经济价值又低。这种老一套的养殖结构,在每年只有3～4个月养鱼季节的地区,是极不合算的生产循环。提高吃食鱼的产量,单位面积内,生产更多更好的优质鱼,才能达到高效率利用池塘,提高鱼
The province is located in the summer short winter and long cold areas, limited by the natural climate, short aquaculture, pond fish production has been low, the economic efficiency is not obvious, although the individual has a yield of more than 300 kilograms of high yield ponds, silver carp Fish production is the main part. The silver carp and bighead carp from fish species to adult fish, neither too popular with the masses, low economic value. This old set of farming structure, in the annual 3 to 4 months of fish farming season in the region, is a very uneconomical cycle of production. Improve the production of fish eating, production of more and better quality fish per unit area, in order to achieve efficient use of ponds, raising fish