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对鲤鱼灌服土霉素和呋喃唑酮２４小时后，肠道内好氧和厌氧菌群数量及组成的变化进行了研究。结果表明；喂药后鲤鱼肠道细菌的数量明显减少，肠道优势菌群发生了明显的变化。
Changes in the number and composition of aerobic and anaerobic colonies in the intestine were studied 24 hours after carp was fed with oxytetracycline and furazolidone. The results showed that: after feeding the carp intestinal bacteria significantly reduced the number of dominant intestinal flora occurred significant changes.