近几年来 ,内陆省份的罗氏沼虾养殖业发展迅猛 ,各地养虾产量也不断上升 ,养虾效益很高。但许多生产户还不了解虾病的病症及防治方法 ,对生产造成较大损失。对此 ,笔者据我公司近 6年的养虾实际经验 ,将几种典型常发虾病防治方法总结如下 :1　甲壳溃疡病[病症 ]病虾体表甲壳有 In recent years, inland provinces, Macrobrachium rosenbergii rapid development of aquaculture, shrimp production throughout the country also continue to rise, raising shrimp benefits. However, many producers still do not understand the disease of shrimp disease and prevention and treatment methods, resulting in greater loss of production. In this regard, the author, according to my company nearly six years of shrimp practical experience, will be several typical methods of prevention and treatment of shrimp are summarized as follows: 1 crustaceans ulcer disease [disease]