1 亲虾管理与孵化1.1 亲虾挑选 亲虾一般在10月中、下旬从成虾养殖池中挑选。选择亲虾要掌握以下四个标准:①个体大而均匀,雌虾要求体长10cm、重25g左右;②身体健康、体色鲜明、活动性强、附肢完整。③雌雄比以3:1为宜,以保证亲虾获得较高的受精率。④越冬亲虾成活率在80％左右、每尾雌虾约生产虾苗1500尾。按照这个标准确定亲虾越冬数量。 1 broodstock management and hatch 1.1 broodstock selection broodstock generally in mid-to-late October from the shrimp pond selection. The choice of broodstock to master the following four criteria: ① individual large and uniform, female body length of 10cm, weight 25g or so; ② physical health, body color bright, activity, complete appendages. ③ ratio of male to female 3: 1 is appropriate to ensure that broodstock to obtain a higher fertilization rate. ④ overwintering pro-shrimp survival rate of about 80%, about 1,500 per shrimp tail production of females. According to this standard to determine the number of overwintering broodstock.