Department of Fisheries, Nihon University, Shimouma 3, Setagaya, Tokyo, Japan.
Microb Ecol. 1988 May;15(3):333-44. doi: 10.1007/BF02012646.
The bacterial flora in the intestinal tract of goldfish (Carassius auratus) was investigated at different stages of fish development. The floras of the diets and the water and sediment of a culture pond were also analyzed. The total counts in the intestine ranged from 2.2 × 10(6)-2.1 × 10(8) cells g(-1) wet weight.Aeromonas hydrophila, A. punctata, Pseudomonas, Bacteroidaceae andClostridium species were the common components in the intestinal tract of goldfish from larvae to adult stage.Bacteroides type A appeared at 44 days with a density of 10(3) cells g(-1) and then predominated with densities of 10(5)-10(7) cells g(-1). The intestinal microflora of goldfish become relatively stable after 67 days of hatching. These observations suggest that the intestinal microflora of adult goldfish becomes established approximately 2 months after hatching.
研究了不同发育阶段金鱼（Carassius auratus）肠道中的细菌菌群。还分析了饮食、养殖池中的水和沉积物中的菌群。肠道中的总计数范围为 2.2×10(6)-2.1×10(8)细胞/g（湿重）。气单胞菌、斑点气单胞菌、假单胞菌、拟杆菌科和梭菌属是从幼鱼到成鱼阶段金鱼肠道中的常见成分。A 型拟杆菌在 44 天出现，密度为 10(3)细胞/g，然后以 10(5)-10(7)细胞/g 的密度为主。孵化后 67 天，金鱼的肠道微生物群变得相对稳定。这些观察结果表明，成金鱼的肠道微生物群在孵化后大约 2 个月后建立。
