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河道精养是开发利用大中型水体的一条重要路子,它具有投资少、上马快、成本低、效益高等优点。一般只要建好拦鱼设施、注意防逃、合理放养、加强管理,就可获得高产和较好的经济效益,其技术要点如下: 一、河道选择。面积100亩至300亩为好,常年水深能保持2.5米左右,水流保持2—2.5米左右。 二、拦鱼设施。一般分网箔和竹箔两种,
Intensive river channel development and utilization of large and medium-sized water is an important way, it has less investment, quick start, low cost, high efficiency advantages. As long as the general construction of fish-stopping facilities, pay attention to anti-evasion, reasonable stocking, strengthen management, you can get high yield and better economic benefits, the technical points are as follows: First, the choice of channels. Area of 100 acres to 300 acres as well, perennial water depth can keep about 2.5 meters, the water flow to maintain 2-2.5 meters. Second, stop fish facilities. General sub-net foil and bamboo foil two,