一、症状和病理变化 鲤春病毒血症又称鲤传染性水肿病。此病患病初期,表现为病鱼行动迟缓,有侧游现象,呼吸困难,体色发黑,无食欲。继而病鱼皮肤表层局部发炎出血,表皮糜烂,脱鳞,形成溃。随着病情迅速加剧,病鱼出现眼球突出,腹腔积水,腹部显著肿大,全身竖鳞、鳃丝苍白、全身浮肿。 First, the symptoms and pathological changes Lei Chun viremia, also known as infectious carotid edema disease. Early onset of the disease, manifested as sick fish slow, there are side effects, breathing difficulties, body color black, no appetite. Then sick fish skin surface inflammation of the local bleeding, epidermal erosion, stripping, the formation of ulceration. With the rapid aggravating illness, disease fish appear prominent eye, abdominal water, the abdomen significantly enlarged, the body vertical scales, pale gills, body edema.