南美白对虾在海水养殖条件下病害较多,养殖过程中使用药物品种多、剂量大,导致药物残存量较高。而在淡水条件下养殖该品种,能使引起南美白对虾的红体病、白斑病的病毒及引起其它疾病的细菌几乎不能存活,因而淡水养殖南美白对虾,生长快、个体大、病害少。最近几年,我省普遍养殖? Penaeus vannamei has more diseases under mariculture conditions, more varieties and more doses of drugs are used in the breeding process, leading to higher drug residues. Breeding this variety under freshwater conditions made it possible for the freshwater cultured P. vannamei to grow very fast, with large individuals and few diseases, so that the bacteria causing white body disease, white spot disease and other disease caused by P. sojae could hardly survive. In recent years, our province generally breeding?