通过对４０只普通棉耳型狨猴的大便培养研究发现，大肠杆菌（Ｅｓｃｈｅｒｉｃｈｉａｃｏｌｉ．）的分离率为１００％。在肠道兼性需氧菌群中所占比例为１０％～９５％，粪肠球菌（Ｅｓｃｈｅｒｉｃｈｉａｆａｅｃａｌｉｓ）的分离率为９０％所占比例为４％～６０％，葡萄球菌（Ｇｅｎｕｓｓｔｅａｐｈｙｌｏｃｏｃｕｓ）、变形杆菌（Ｐｒｏｔｅｕｓ）分离率分别为５５％和５８％，此外还分离出产气肠杆菌（Ｅｎｔｅｏｂａｃｔｅｒａｅｒｏｇｅｎｅｓ）、白色念珠菌（Ｃａｎｄｉｄａａｌｂｉｃａｎｓ）等９种细菌。其中大肠杆菌、粪肠球菌的分离率及所占比例同人类肠道菌群近似，而葡萄球菌及变形杆菌分离率及比例同人类肠道菌群的差异较大 The stool culture of 40 common ear-ear marmosets showed that the isolation rate of Escherichia coli was 100%. Accounting for 10% -95% of enterogenic aerobic flora, Escherichia faecalis isolates of 90%, 4% -60%, Staphylococcus aureus, (Proteus) separation rate of 55% and 58%, respectively, in addition to the separation of Enterobacter aerogenes (Enteobacteraerogenes), Candida albicans (Candidaalbicans) and other 9 kinds of bacteria. Escherichia coli, Enterococcus faecalis separation rate and the proportion of similar human intestinal flora, and Staphylococcus aureus and Proteus separation rate and the proportion of large differences with the human intestinal flora