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冬季对鱼种和未达商品规格的鱼并塘后,因池塘内鱼的密度加大,需氧量增加,加之结冰后的水面封闭,这时如不注意及时补氧,极易导致严重损失。冬季对鱼类进行补氧可采取以下几种方法:1.循环注水补氧把几个靠近的鱼塘用水泥管或塑料管连接,用机械将1个塘的水抽向另外1个塘,几个鱼塘的水体形成循环。水体流动后,与空气接触增多,空气中的氧气溶于水体中,从而提高水体溶氧量。
In winter, for fish species and below-product fish and ponds, due to the increased density of fish in the ponds and the increased oxygen demand, and the closed water surface after freezing, it is extremely easy to cause serious oxygenation loss. Oxygenation of fish in winter can take the following methods: 1. Circulating water injection oxygen Several fish ponds close to the cement pipe or plastic pipe connected to the mechanical pumping of a pond of water to another pond, Several fish ponds form a water cycle. After the flow of water, contact with air increases, the oxygen in the air dissolved in water, thereby increasing the amount of dissolved oxygen in water.