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春季鱼体抵抗力较弱,是鱼病的易发期。也是防偷、毒、炸鱼事件发生的关键期。实践证明,高产鱼塘,要减少鱼病发生,避免鱼种损失,获得稳产、高产,在实际工作中应把好“三关”。 一是看管防护关。春节前后鱼种已投放完毕,春季塘鱼一旦受损,很难再购到合适的鱼种。即使能购到,鱼种经再次捕捞、运输、投放等操作,易损伤。进塘后仍需一段
Spring fish resistance is weak, is prone to fish disease. It is also the key period to prevent stealing, poisoning and fish attack. Practice has proved that high-yielding fish ponds, to reduce the occurrence of fish diseases, to avoid loss of fish species, access to stable production, high yield, in practice should be good “three off.” First, take care of protection. Before and after the Spring Festival has been put on the species, once the pond is damaged in spring, it is difficult to buy the right species. Even if it can be purchased, the species will be easily harmed if it is re-harvested, transported, put into operation, etc. Into the pond still need some time