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3.白头白嘴病 症状:患病的鱼,外部症状表现为:自吻端至眼球一段皮肤失去正常的颜色而变成乳白色;唇似肿胀,张闭失灵,因而造成呼吸困难;口周围的皮肤溃烂,有絮状物粘附其上,故在池边观察水面浮动的病鱼,可见“白头白嘴”的症状。若将病鱼拿出水面看,则症状不如前者明显。显微镜检查病灶部位的刮下物,除看到大量离散崩溃的细胞、粘液、红细胞等外,还有群集成堆、左右摇摆和个别滑
3. White-billed white mouth disease Symptoms: diseased fish, the external symptoms are: from the kiss to the end of the eye a period of skin loses the normal color and becomes milky white; lips swollen, Zhang closed failure, resulting in breathing difficulties; mouth around Skin ulceration, there are flocs attached to it, so observe the surface of the pond floating sick fish, we can see the “white head and white mouth” symptoms. If sick fish out of the water to see, the symptoms are not as obvious as the former. Microscopic examination lesion scraping material, in addition to see a large number of discrete collapsed cells, mucus, red blood cells, etc., there are clusters of piles, left and right and individual slip