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养鱼池塘,每年入冬以前,要将池鱼除投放大水面或外运之外,剩余的部分要并池密放,之后大部分鱼塘处于冬闲季节,利用这个时期进行修整和消毒处理等工作,以改善鱼塘环境条件,消灭病原体,减少鱼病的发生,提高鱼类成活率。一、鱼池的修整:鱼塘经过一年来的养鱼生产,有的塘埂出现塌陷、裂缝。有的面塘面积,不宜鱼类生长和生产操作。而且鱼塘经过一年的施肥、投饵,池底层淤泥增多,使池水变浅,同时,对水质也有影响。
Fish ponds, before entering the winter each year, in addition to put the fish in large surface or outside the transport, the remaining part of the pond and close, most of the fish ponds in the winter leisure season, the use of this period for dressing and disinfection Work to improve the environmental conditions of fish ponds, eliminate pathogens, reduce the incidence of fish diseases and improve the survival rate of fish. First, the fish pond trimming: fish ponds after a year of fish production, some ponds collapse, cracks. Some pond area, not suitable for fish growth and production operations. And after a year of fertilization of fish ponds, feeding, the bottom of the pond sludge increased, so that shallow water, at the same time, the water quality also has an impact.