在每年的11月前后,因鱼种秋放或并池越冬会空出一部分鱼种池。这些空出的鱼种池一般要到来年的4月末或5月间鱼苗发花时才再利用,空闲期长达5个月以上。利用这些冬春空闲的鱼种池蓄养商品成鱼,既可提高池塘利用率,增加成鱼产量,又能均衡鱼货市场供应,增加经济效益,值得推广。 Before and after November of each year, some fish species pools will be empty due to the fall of fish species or pooling over winter. These vacated fish ponds are generally not reused until the end of April or the end of May when the fry bloom. The free time is more than 5 months. The use of these winter and spring stock pools idle stocking fish products, can improve pond utilization, increase adult fish production, but also balance the supply of fish market, increase economic efficiency, it is worth promoting.