驯化食料刺鳅鱼苗 猪麻锯鱼苗 沙鳅鱼苗循环池养殖

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大刺鳅适宜生长养殖前要确保自己所在地气温适宜，避免无效投资。大刺鳅的习性是集群栖息、昼伏夜出，因此饲养时要根据其特点进行管理。

水体环境上，需选择水质好且深度至少在 1.5 米以上的池塘，因大刺鳅善于跳跃，池塘边缘还需加设 1 米高的围墙，防止大刺鳅跳上岸窒息而死。水温为 20 – 29 ℃ 适宜，冬季时水温好不低于 7 ℃。水体保持流动，常见做法是利用抽水机，但是抽水口要注意加网筛，别让大刺鳅跑了。水体中还可以种植一些水草，不仅能改善水质，夏季还能起到降温的效果，冬季则能给水体保温。

日常饲养中每天早晚投食一次，冬季需保持水温在 15 度以上，如果温度低于 15 度大刺鳅应该已经开始冬眠，可以暂不投喂，如果温度低于 10 度，大刺鳅可能会冻死，所以冬季要做好防冻工作。室内养殖池需想办法提升水温，室外的养殖池能加深水深，因为水底的温度会比水面高一些，可以防止大刺鳅冻死。

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人工养殖技术方法如下：

1、池塘养殖： 池塘养鳅，一般选用水泥池或三合土池，池深70－100厘米，水深50－60厘米，池底铺15--20厘米厚的肥泥，池的面积可大可小，以2－3亩为好。池塘应排灌方便，进出水口均用铁丝网防逃。放养前应进行清塘消毒，其方法和用量与鱼苗池相同。

2、池塘混养 即和其它鱼类混养。如和鲢鱼、鳙鱼、鲤鱼、草鱼、鳊鱼等混养。这种养殖方式其选塘、清塘，消毒、放养等和池塘养殖相同。

混养的优点是：不需专门给泥鳅投喂较多饵料，只需给其它鱼类投饵。而鱼类吃不完的饵料和排出的粪便即为泥鳅的食物来源。故这种养殖方式效益高，水面利用价值大，值得大力推广。