青虾又名河虾,学名为日本沼虾,由于青虾食性杂,生长快,繁殖力强,适应性广等特点,因此,湖泊、池塘、河沟、稻田等各类水域都可养殖。但从生产实践来看,要养好青虾,必须把握好以下五项关键技术。(1)种苗来源。目前青虾苗种有三个来源:一是投放抱卵虾,自繁、自育、自养;二是放养上年未达到上市规格的青虾;三是购买或自繁虾苗放养。青虾养殖最好放养当年繁殖的,规模一致的早虾苗。投放抱卵虾或幼虾时间要 Freshwater shrimp, also known as shrimp, scientific name of Japanese marsh shrimp, due to food habits of young shrimp, fast growth, strong reproduction, wide adaptability and other characteristics, therefore, lakes, ponds, river ditch, paddy and other waters can be breeding. However, from the perspective of production practice, to keep freshwater shrimp, we must grasp the following five key technologies. (1) seedling sources. At present, there are three sources of freshwater shrimp species: First, laying shrimp eggs, self-propagation, self-support, self-support; the second is stocking did not meet the market specifications of freshwater shrimp; Freshwater shrimp farming stocking the best reproduction, the same size of early shrimp seedlings. The time to give birth to shrimp or shrimp