鱼种并塘一般在11月下旬至12月上旬。即水温降到10℃左右,鱼种已不大摄食时起捞并池越冬强化培育。空出的鱼种池要到来年的5月上中旬再用,空闲期长达半年。充分利用这些空闲鱼种池塘蓄养商品成鱼,既可提高池塘利用率,又能显著增加经济效益。具体做法是: 1、选池消毒,培肥水质 一般空闲鱼种池均可蓄养商品成鱼,以水深 Fish species and Tong generally in late November to early December. That is, the water temperature dropped to about 10 ℃, the fish species have not been feeding and pooling over the winter intensified cultivation. Empty fish ponds to be reused on the mid-May of the coming year, the idle period of up to six months. Making full use of these idle fish ponds to store commodities into fish will not only improve the pond utilization rate but also significantly increase the economic benefits. The specific approach is: 1, the election pool disinfection, fertilizer water quality generally free fish ponds can be stocked into fish, with water depth