1.缺氧原因(1)池水过浅冬春季节,鱼池水层表面温度较低,鱼儿一般都潜入深水。因此,池水要保持在2.5米以上深度。池水过浅,则容易引起缺氧。(2)投料过勤严冬和初春,鱼群的生长速度明显降低,食欲减少,相应投放饲料数量也应适当减少,鱼池表层水温在3℃时,每7天左右投料一次。如果投料过勤,则易引起水质过肥,造成池水过肥缺氧。 1. Causes of anoxia (1) the water is too shallow In the spring and winter, 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 2.5 meters. Water is too shallow, it is easy to cause hypoxia. (2) Excessive feeding In winter and early spring, the growth rate of fish population is obviously reduced, the appetite is reduced and the corresponding feed quantity should also be reduced appropriately. When the surface water temperature of fish pond is at 3 ℃, it is fed every 7 days. If you feed too often, it is easy to cause over-water quality, resulting in over-hypoxia pool.