【摘要】 为了解山东省东平湖库区常见淡水鱼肠道菌群的组成,作者对该库区内的草鱼、鲢鱼、鲫鱼和鲤鱼4种鲤科鱼肠道菌群中的需氧菌或兼性厌氧菌进行分离鉴定,并对每种鱼肠道中的菌群数量和种类组成进行分析。结果表明,在上述鱼肠道中均存在哈夫尼亚菌属、致病杆菌属、气单胞菌属、柠檬酸菌属、芽孢杆菌属和链球菌属,其中鲤鱼和鲫鱼肠道菌群的总量比较接近,两者共同含有菌属的数量差别不大。更多还原

【Abstract】 To understand the intestinal flora composition of four types of common freshwater fish in Dongping Lake of Shandong province,aerobic or facultative anaerobic bacteria of intestinal flora in Ctenopharyngodomi dellus,Hypophthalmichthys molitrix,Cyprinus carpio haematopterus and Carassius auratus were isolated and identified,with the quantity and composition of intestinal flora being analyzed.The results showed that in this study Hafnia,Xenorhabdus,Ameromonas,Citrobater,Bacillus,and Strooptococus were common to each type of fish,and Cyprinus carpio haematopterus and Carassius auratus contained appropriate quantity of intestinal flora with little difference in genus quantity.更多还原