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鱼池养鱼必须经常向鱼池加注新水。目前,有些养殖户对鱼池加注新水缺乏科学,需要进行改革,以提高单位面积产量和减少鱼病的发生。一改白天注水为夜晚注水夜晚给鱼池注水,尤其是凌晨3～4时或1～2时注水。可提高池水的溶氧量。改良水质。避免鱼缺氧浮头。对防止泛池和病害发生有明显效果。二改吸深层水为吸浅层水用抽水机械给鱼池加注新水时,通常是将吸水管插入水下1米或更深处,所以吸注的是深层水。这种水有机质含量高,溶氧含量低。水温也偏低,注入鱼池后,不利于鱼的生长发育。因此。要改吸溶氧丰富的浅层水,即将吸水管插入水下30厘米即可。
Fish ponds Fish must always be refilled with fresh water. At present, some farmers lack scientific science of filling new ponds with fish and need to carry out reforms to increase the yield per unit area and reduce the incidence of fish diseases. Change the water during the day and night to fill the water at night to fish pond water, especially in the early morning 3 to 4 o’clock or 1 to 2 water. Can improve the dissolved oxygen of water. Improve water quality. Avoid fish hypoxic head. To prevent pan-pond and disease have a significant effect. Second, the reform of deep water to absorb shallow water Suction shallow water pumping machine to fish ponds when the new water, usually the suction pipe into the water 1 meter or deeper, so the suction is deep water. This water has high organic matter content and low dissolved oxygen content. The water temperature is also low, into the fish pond is not conducive to the growth and development of fish. therefore. To change the oxygen absorption shallow shallow water, will be inserted into the water pipe 30 cm underwater can be.