南美白对虾 (Penaeusvannamei)以其生长速度快、抗逆性强、广盐性、适宜高密度养殖等优点,在我国南北方沿海海水、半咸水、淡水进行大面积养殖,目前池塘养殖单产每亩可达 2 000 ~3 000kg。近年来,随着养殖面积不断扩大,养殖密度越来越高,养殖环境日趋恶化,其对虾病害发展也 Penaeus vannamei has been widely cultivated in coastal seawater, brackish water and freshwater in the north and south of China for its fast growth rate, strong resistance to salt stress, wide salinity and suitable for high-density breeding. At present, Mu up to 2 000 ~ 3 000 kg. In recent years, with the continuous expansion of breeding area, breeding density is getting higher and higher, farming environment deteriorating, and its shrimp disease development