天津市南美白对虾养殖用苗一般是由南方引进,只有少数单位是直接引进亲虾自行繁育的。近两年来,天津市南美白对虾养殖过程中发生的疾病增多。在南美白对虾养殖过程中,在半咸水养殖南美白对虾生产实践中,我们认识到,如果没有感染白斑综合征病毒,就肯定不会发生白斑病;如果池塘环 Tianjin South American white shrimp farming seedlings are generally introduced by the South, only a small number of units is the direct introduction of broodstock self-breeding. In the past two years, the disease occurred during the culture of P. vannamei in Tianjin. In the practice of P. vannamei farming in the brackish aquaculture practice in Penaeus vannamei we realized that leukoplakia would not have occurred if it was not infected with the white spot syndrome virus;