为了改变武清县旧的水产养殖模式,1997年我们在武清县黄庄乡小营村李寿久承包的鱼塘中进行一年两茬养鱼试验,第一茬是成鱼养殖,第二茬是鱼种养殖。经过一年的养殖试验研究,获得了较好的经济效益和社会效益,亩获纯利1800元,现将两茬养殖试验情况总结如下。 In order to change the old pattern of aquaculture in Wuqing County, we conducted a two-year trial of fish breeding in a fish pond contracted by Li Shoujiu in Xiaoying Village, Huangzhuang Township, Wuzhuang County in 1997. The first crop was made of adult fish and the second Crops are breeding fish. After a year of breeding experimental study, access to a better economic and social benefits, profit of 1,800 yuan per mu, now two crop breeding trials are summarized below.