细菌性疾病一、真鲷稚鱼的腹部膨胀苗种生产的真鲷稚鱼,有时从孵化后15天左右起腹部膨胀,最后大量死亡。病鱼的体色退化,腹部带白色,异常膨胀。如果观其腹部的压片标本,可发现在消化道内大量存有未消化的褶皱臂尾轮虫,并出现所谓“粪便堵塞”的症状。 Bacterial diseases First, the seabream Juvenile abdomen bloated seabream produced juvenile, sometimes from about 15 days after hatching abdominal distension, and finally a large number of deaths. Diseased fish body color degradation, belly with white, abnormal expansion. If you look at the abdominal compression specimen, you can find a large number of undigested Brachionus plicatilis in the digestive tract, and the so-called “stool congestion” symptoms.