1、病因引起南美白对虾软壳病的因素很多,主要有以下几种:(1)长期投饵不足,使对虾呈饥饿状态。(2)饲料营养配比不均衡,钙和磷的比例不恰当,而这种饲料往往达不到良好的养殖效果。(3)投喂腐败变质的饲料。(4)池水中溶解磷的含量下降,对虾摄磷量不足,而磷是对虾甲壳形成和钙化过 1, the cause of South American white shrimp soft shell disease caused by many factors, mainly in the following categories: (1) lack of long-term feeding, shrimp was hungry. (2) feed nutrition is not balanced, the ratio of calcium and phosphorus is not appropriate, and this feed often fail to achieve good breeding effect. (3) feed spoilage feed. (4) The content of dissolved phosphorus in the pond water decreased, the phosphorus uptake of shrimp was not enough, and phosphorus was the formation and calcification of shrimp carapace