虾白斑病的防治本病由细菌引起．健康的虾往往因吃了带病虾附肢后而感染；也有放养虾密度过大，投饵过量造成池底有机质污染引起的．在发病初期，病虾甲壳上可见白斑，分布以头胸部为主，其次腹部也有，有时病虾输卵管末端也有白斑存在。后期由白斑转为黑斑，病虾离群独游... Psoriasis prevention and treatment of the disease caused by bacteria. Healthy shrimp are often infected with diseased shrimp appendages; excessive shrimp stocking also results in organic contamination of the bottom of the pond due to excessive feeding. In the early stages of disease, shrimp can be seen on the carapace white spot, mainly in the distribution of head and chest, followed by the abdomen, sometimes shrimp tubal end there are white spots exist. Late white spot to black spots, diseased shrimp outing alone ...