目前池塘养殖多数采用多种鱼类多种规格的高密度养殖,这样可充分利用饵料和水体,发挥鱼类之间的互利关系,这种养殖模式在提高经济效益的同时,对养殖技术也提出了更高的要求。每年由于鱼的浮头各地池塘死鱼的损失很大,下面就浮头引起的原因,判断轻 At present, most of pond aquaculture uses a variety of fish species of high-density breeding, which can make full use of food and water, play a mutually beneficial relationship between fish, this breeding mode in improving economic efficiency, but also raised the breeding technology A higher requirement. Each year due to the floating head of fish around the pond dead fish loss is very large, the following floating head causes, judging light