The establishment of an intestinal microflora in developing goldfish (Carassius auratus) of culture ponds
The establishment of an intestinal microflora in developing goldfish (Carassius auratus) of culture ponds
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DOI：
10.1007/bf02012646
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发表时间：
1988-05
影响因子：
3.6
通讯作者：
H. Sugita;M. Tsunohara;T. Ohkoshi;Y. Deguchi
中科院分区：
文献类型：
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作者：
H. Sugita;M. Tsunohara;T. Ohkoshi;Y. Deguchi
在鱼类发育的不同阶段对金鱼（Carassius auratus）肠道内的细菌菌群进行了研究。还分析了饲料的菌群以及养殖池的水和沉积物。肠道内总计数范围为2.2 × 106−2.1 × 108cells g−1湿重。 嗜水气单胞菌、点状放线菌、假单胞菌、类杆菌科和梭菌属是金鱼幼鱼至成鱼肠道中常见的成分。 A型拟杆菌在第44天出现，密度为 103 个细胞 g−1，然后以 105−107 个细胞 g−1 的密度为主。金鱼孵化67天后肠道菌群变得相对稳定。这些观察结果表明，成年金鱼的肠道微生物群在孵化后大约 2 个月就建立起来了。
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 × 106−2.1 × 108cells g−1wet weight.Aeromonas hydrophila, A. punctata, Pseudomonas, Bacteroidaceae andClostridiumspecies were the common components in the intestinal tract of goldfish from larvae to adult stage.Bacteroidestype A appeared at 44 days with a density of 103cells g−1and then predominated with densities of 105−107cells 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.