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扣蟹培育从5月底至6月初开始,一般采用二级放养,在此以前时间内,扣蟹培育池处于闲置状态,利用这段时间闲置的扣蟹培育池进行大规格鳜鱼苗种的培育,不但能解决河蟹生态养殖中大规格鳜鱼种紧缺问题,还可提高池塘利用率,获得良好的经济效益。 1 材料和方法 1．1 时间地点 2004年4-5月,在南京高淳县团结圩农场。
Crab breeding from the end of May to early June beginning, the general use of secondary stocking, in the previous period, the deduction crab incubation pool is idle, the use of this time idle crab incubation pool large bream nurture cultivation, Not only can solve the shortage of large-sized mackerel species in ecological culture of crabs, but also can improve the pond utilization rate and obtain good economic benefits. 1 Materials and Methods 1.1 Time and place 2004 April-May 2004, Nanjing Gaochun County Unity Fair farm.