青虾养殖自１９９２年以来在江、浙发展迅速，２０００年仅浙江省青虾养殖面积几十万亩，成为稻田名特优水产养殖的主要品种。虽然青虾养殖技术得到快速推广，但在养殖中，由于某些环节的疏忽，青虾的发病率在逐年提高，青虾的规格、品质、产量有所下降，从而影响青虾养殖的产 Since 1992, the shrimp farming has developed rapidly in Jiangsu and Zhejiang provinces. In 2000, only a few hundred thousand mu of freshwater shrimp were planted in Zhejiang Province, making it a major species for the famous special aquaculture in paddy fields. Although the shrimp farming technology has been rapidly promoted, but in aquaculture, due to some aspects of the negligence, the incidence of freshwater shrimp increased year by year, the specifications of shrimp, quality, production declined, thus affecting the production of freshwater shrimp farming