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1993年对虾养殖遭受了历史上最大的病害灾难,造成了巨大的经济损失。但是,不论哪一个省、市、县或乡镇都有一部分虾池始终正常,一直饲养到收获季节,产量甚至高达250kg,规格达20尾/500g左右,效益十分可观。以上事实说明,今后并不是不能再养虾,虾病也不是不能预防和抗拒,关键是应该采取正确的对策。从发生虾病的池塘分析:连续多年养殖污染比较严重的;投放苗种密度过大的;养虾区域内有河道排污源的;沿海养殖面积负载过大的;过量投饵造成池塘底质水质败坏
In 1993, shrimp farming suffers the greatest disease disaster in history, resulting in enormous economic losses. However, no matter which province, city, county or township has a part of the shrimp pond has always been normal, has been raised until the harvest season, the output even up to 250kg, specifications up to 20 / 500g, the benefits are impressive. The above facts show that it is not impossible to raise shrimp in the future. Nor is it not impossible to prevent and resist shrimp diseases. The key point is that we should take the correct measures. From the shrimp pond disease analysis: continuous years of serious pollution farming; put seed density is too large; shrimp area with river discharge sources; coastal aquaculture area load is too large; excessive feeding caused by pond sediment water quality corrupt