围栏养鱼就是在湖泊和水位落差不大的水库中,用网片围拦出一定数量的水面养鱼。这种独特的渔业生产方式具有以下优点:一、不占用农田,不需要增氧机、水泵和排灌设施等,投资少,见效快,能实现当年投资,当年受益。二、水体宽敞,水质清新,溶氧量高,鱼类食欲旺盛,不仅生长快(平均增 Fence fish is in the lakes and water level gap between the reservoir, with a mesh fence to block a certain amount of surface water fish. This unique fisheries production has the following advantages: First, do not take up farmland, do not need aerators, pumps and irrigation and drainage facilities, less investment, quick, to achieve the investment that year, then benefit. Second, the water is spacious, fresh water, high dissolved oxygen, fish appetite, not only grow fast (average increase