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宁夏自治区水产研究所1995年引进罗氏沼虾淡化虾苗进行塑棚池塘试养，经过两年的努力．初获成功。去年，罗氏沼虾亩产超过500斤．亩产值超过2万元，社会效益和经济效益都十分显著。为认真贯彻“九五”自治区水产业“稳定鲤草鲢鳙，发展名特优新”的方针，加快水产养殖品种结构?
Ningxia Autonomous Region Institute of Fisheries in 1995 to introduce Macrobrachium Desalination shrimp pond plastic tent cultivation, after two years of hard work. First success. Last year, Macrobrachium rosenbergii more than 500 pounds per mu. Mu output value of more than 20,000 yuan, social and economic benefits are very significant. In order to conscientiously implement the policy of “stabilizing carp, bighead carp and bighead carp,” in Ninth Five-year Autonomous Region, speeding up the structure of aquaculture species?