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华容县北景港镇牛氏湖渔场渔民江平安承包6.7亩精养鱼池,1991年产鲜鱼3954kg,亩产590kg。其中粗鳞鱼2342.5kg,亩产349.6kg,细鳞鱼1161.5kg,亩平173.3kg,老口鱼种450kg,亩平67.1kg。粗鳞鱼按4.2元/kg,细鳞鱼按2.12元/kg计算,分别为9838.5元、2462.38元,小计产值12300.88元(鱼种未计算产值),亩平产值1835.95元。除物化成本3317元,总收入8983.88元,亩平纯收入1340.75元。现将具体作法小结如下: 一合理放养鱼种鱼种是成鱼养殖的物质基础。其品种、体质、规格、放养密度、搭配比例都关系到养鱼产量的高低,影响到养鱼的经济效益。江的作法是:在立春前,投放尾平300g的草鱼种1200尾,尾平50g的草鱼
Huarong County, North Harbor Township, Niu’er Lake fishery fishermen River Ping’an contracted 6.7 acres of intensive fish ponds, 3954kg of fresh fish in 1991, 590kg per mu. Including coarse-shelled turtle 2342.5kg, 349.6kg per mu, 1161.5kg of small-scale fish, mu of 173.3kg, the old mouth of 450kg, mu 67.1kg. Gross calculus at 4.2 yuan / kg, fish scales by 2.12 yuan / kg, respectively, 9838.5 yuan, 2462.38 yuan, the subtotal output value of 12300.88 yuan (not counting the output value of fish species), mu flat production value of 1835.95 yuan. In addition to materialization costs 3317 yuan, the total income of 8983.88 yuan, mu flat net income of 1340.75 yuan. The specific practices are summarized as follows: A reasonable stocking fish species is the material basis for adult fish farming. Its variety, constitution, specifications, stocking density, with the proportion of the relationship between the level of fish production, affecting the economic benefits of fish farming. Jiang’s approach is: before the beginning of spring, put the end of the 300g grass carp species tail 1200, the end of flat grass 50g