浮头的预测、轻重判别及解救方法

• 作 者: 晓鸥 达理
• 机 构: 四川省阆中县水电局,四川省阆中县水电局,
• 出 处: 四川农业科技
• 发表日期: 1986年05期
• 关键词: 池塘养鱼 泛池 鱼浮头 肥度 耗氧率 天气闷热 增氧机 投饵 有机物分解 体色

在高产池塘中,肥水养鱼放养密度大,出现一些浮头是正常现象;如果塘中一点浮头也没有,则说明水体空间没有充分利用,水质肥度不够,得不到养鱼高产。但是,浮头过多,则会影响鱼的生长,严重时还会导致泛池,造成鱼类大量死亡。高产塘以间隔5—7天发生一次轻度浮头为佳。因此,要获得池塘养鱼的高产,需要正确掌握鱼类浮头的预测、轻重判断及解救方法。

In high-yielding ponds, there is a large stocking density of the fish and water fish and some floating heads are normal. If there is no floating head in the pond, the water space is not fully utilized, and the water quality and fatness are not enough to obtain high-yielding fish culture. However, too much floating head can affect the growth of fish and, in severe cases, lead to pan-pool, causing a large number of fish deaths. High-yielding ponds are preferred to have a mild floating head 5-7 days apart. Therefore, to obtain high yields of pond fish culture, it is necessary to correctly grasp the prediction, severity judgment and rescue methods of fish floating head.