随着养鱼生产的不断发展,各地饲养鱼种(夏花到春花阶段)的池塘也就相继增加。但历年来,这些鱼池培育的鱼种出池后,鱼池在上半年除有少量的用来孵化鲤鲫等鱼和培育鱼苗外,大部分鱼池有6—7个月的空池时间.若利用这段时间培育一茬大规格鱼种,则就可在不增加设备、投资的情况下,提高池塘的利用率和经济效益. With the continuous development of fish farming, the number of ponds that breed fish species from summer to spring has also increased. However, over the years, most of the fish ponds have a 6-7 month empty pool time after the fish species incubated in these fish ponds are discharged from the pond in the first half of the year except for a small amount of fish used for hatching carp crucian carp and fowl breeding. During this time to breed a large staple species, you can increase the utilization rate and economic efficiency of the pond without increasing equipment, investment.