一、泛池往年发生过严重死鱼事件的精养池塘,要特别注意发生浮头的现象。当池养鱼出现严重浮头,不及时处理就易引起泛池,而严重泛池可致使养殖鱼全部死亡。特别是在无风、闷热、打雷不下雨或雷阵雨、暴雨过后等天气异常时要注意。投饵过剩、水质恶化、水源不好,养殖鱼鳃部有病, First, pan-Chi in the past serious flooding in the event of fish ponds, pay special attention to the phenomenon of floating head. When the pool fish appear serious floating head, do not promptly deal with the pan-induced easy, and severe pan-pool can cause all the fish died. Especially in the absence of wind, hot, thunder does not rain or thunderstorms, abnormal weather after the storm should pay attention. Over-feeding, deteriorating water quality, water is not good, farming fish gills sick,