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(一)竖鳞病竖鳞病又称鳞立病、松鳞病,病鱼体表粗糙,部分鳞片向外张开像松球,用手指在鳞片上稍加压力,渗出液就从鳞片下喷射出来,鳞片也随之脱落。有时常伴有鳍基充血,皮肤轻微出血发炎,脱鳞处形成红色溃疡,眼球突出,腹部膨胀等症状。随着病情的发展,病鱼表现游动迟钝,呼吸困难,继而腹部向上,持续2～3天后死亡。该病病原体是水型点状假单胞菌,当水质恶化或鱼体受伤时,越冬鱼类易感染病菌,
(A) vertical scale disease vertical scale disease, also known as scales disease, loose scales, diseased fish rough surface, part of the scales open out like pinecone, a little pressure on the scales with your fingers, exudate from the scales Under the jet, scales also will fall off. Sometimes accompanied by fin base congestion, inflammation of the skin mild bleeding, decay at the formation of red ulcers, prominent eyes, abdominal distension and other symptoms. With the development of the disease, sick fish swimming slow performance, breathing difficulties, followed by abdominal up for 2 to 3 days after the death. The pathogen is water-like Pseudomonas, when the water quality is deteriorated or the fish are injured, winter fish are susceptible to bacteria,