淡水养殖鱼类的细菌性败血症是近年来在我国流行范围广、导致患病鱼类种类多、死亡率高、危害和损失大的养殖鱼类急性传染性疾病,也被称为淡水养殖鱼类暴发性鱼病。1.病鱼症状该病由病原体产生毒素,引起鱼体溶血、出血、组织严重坏死,最后导致死亡。疾病初起时,病鱼的颌部、口腔、眼睛、鳃盖、体 Bacterial sepsis in freshwater cultured fish is a kind of acute infectious disease of farmed fish, which is widely spread in our country in recent years, leading to many kinds of diseased fish, high mortality rate, great harm and loss, also known as freshwater aquaculture fish Outbreak of fish disease. 1. Symptoms of sick fish The disease produces toxins from pathogens, causing the fish to hemolysis, bleeding, serious tissue necrosis, and eventually lead to death. When the disease begins, the jaws, mouth, eyes, operculum, body of diseased fish