河蟹(中华绒螯蟹),广泛分布于我国大江南北,是我国最主要的经济蟹类之一,浙江省的河蟹养殖发展十分迅猛,但由于河蟹的良种繁育、饲养管理、疾病防治等一系列技术尚未有重大突破,所以养殖成活率偏低、商品规格偏小、品质持续下降,养殖效益不断下滑,从而制约了全省河蟹养殖的全面 Crab (Eriocheir sinensis) is widely distributed in the north and south of China. It is one of the most important economic crabs in China. Crab farming in Zhejiang Province has developed rapidly. However, due to the breeding of crabs, feeding and management, disease prevention and control, a series of technologies There has not been a major breakthrough, so breeding survival rate is low, the product size is small, the quality continues to decline, the breeding benefits continue to decline, thus restricting the province’s comprehensive crab farming