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我市于1993年推广使用了强氯精防治鱼病,普遍反映效果良好。但一些鱼池由于施用强氯精方法不当,出现异常现象,甚至出现大批鱼死亡。给养鱼生产造成了一定损失。分析其原因,我们认为有以下几方面。 1.施药时间不当。一是鱼在浮头或浮头刚消失,鱼正处于昏迷状态,体质差;加上上午8时开始施药,水中含氧量少,水温逐渐上升,药物反应加速,药液在很短的时间内就达到较高浓度,稍有不慎,很容易造成鱼类大批死亡。二
The city in 1993 to promote the use of strong chlorine prevention and control of fish diseases, generally reflect the good results. However, some ponds due to the improper application of strong chlorine, anomalies, or even a large number of fish died. To fish production caused a certain loss. Analysis of the reasons, we think the following aspects. 1.Application time is not appropriate. First, the fish floating head or floating head has just disappeared, the fish are in a coma, poor health; plus 8 am start spraying, less oxygen in the water, the water temperature gradually increased, the drug response accelerated, liquid in a very short period of time To reach a higher concentration, a little careless, it is easy to cause a large number of fish deaths. two