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冬季并塘后到翌年放养夏花前,大部分鱼种池将有半年左右的空闲期,对其进行综合利用,就可以提高这些鱼种池的利用率,提高经济效益。下面介绍冬闲鱼种池的两种利用方法。一、养成鱼利用冬闲鱼种池养一季成鱼,由于养殖期限较短,温度较低,所以所采用的技术关键:①提早放养,即在鱼种并塘后即行放养,以充分利用生长期。放养量以最大水深2m左右计算,一般每亩放125～150kg。放养比例一般鲢鱼占40％左右,鳙鱼占10％左右,草、鳊鱼占30％左右,青、鲤鱼占20％左右。放养鱼种要大
Most of the fish species ponds will have an idle period of about six months after pond ponds are collected in winter and ponds until the following year. By comprehensively utilizing them, the utilization rate of these species ponds can be increased and the economic benefits can be raised. Here are two kinds of winter leisure fish species pool use. First, the formation of fish to use winter leisure fish ponds to raise a quarter of adult fish, due to shorter breeding period, the temperature is low, so the key technology used: ① early stocking, that is, after stocking and pond stocking to take full advantage of growth period. Stocking to the maximum depth of about 2m, generally put 125 ~ 150kg per mu. The stocking ratio of silver carp general 40%, catfish accounted for about 10%, grass, catfish accounted for about 30%, green, carp accounted for about 20%. Stocking species should be large