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近年来,随着本区养鱼技术的普及和集约化养鱼程度的提高,精养鱼塘的经济效益越来越好。特别是1997年鲤鱼价格达到9元/kg左右,使渔农获得了丰厚的经济收入,从而进一步激发了渔民生产的积极性。西青区1998年无论在养殖面积上还是在放养密度上都达历史上新的高峰。但随之而来的是养殖鱼类的病害发生率高、用药成本上升。尤其是在鱼类生长的黄金季节7~8月份,养殖鱼类不明原因的不吃食现象,更令广大渔农不知所措。下面仅就本区的实际情况对夏季精养池塘鱼类不明原因的不吃食现象进行粗浅的探讨,供同行参考。
In recent years, with the popularization of the fish farming technology and intensive fish farming in this area, the economic benefits of intensive fish ponds have become better and better. Especially in 1997 carp prices reached 9 yuan / kg or so, so that fisheries and farmers have gained huge economic income, thus further stimulating the enthusiasm of fishermen. In 1998, Xiqing District reached a new historical peak in terms of both aquaculture area and stocking density. However, there is a high incidence of diseases of farmed fish and the cost of medication increases. Especially in the golden seasons of fish growth from July to August, there is an unexplained food-eating phenomenon of farmed fish, leaving the majority of farmers and farmers at a loss. The following only on the actual situation in the area of summer intensive pond fish unexplained eating phenomenon for a superficial discussion for peer reference.