冬季鱼塘为什么会缺氧,主要有四个方面:1.池水过浅。冬春季节,鱼池水层表面温度低,鱼一般都潜入深水。因此,池水要保持在2.5米左右深度。2.投料过勤。严冬和初春,鱼的生长速度降低,食欲减少,相应投放饲料少,鱼池表层水在3℃时,每7天左右投料一次。3.结冰缺氧。鱼池水在0℃时,表 Why winter ponds lack of oxygen, there are four main aspects: 1. Too shallow water. Winter and spring, fish pond water surface temperature is low, the fish are generally dive into the deep water. Therefore, the water should be kept at a depth of about 2.5 meters. 2. Overdose feeding. Harsh winter and early spring, the fish’s growth rate is reduced, reduce appetite, the corresponding drop in feed, fish pond surface water at 3 ℃, feed once every 7 days. 3. icing hypoxia. Fish pond water at 0 ℃, the table