Table 2.

Indices of alpha-diversity.

Gut	Item	Control	HFD	SEM	P-value
Ileum	OTU number	333a	218b	22.04	0.001
	Shannon index	3.26a	2.50b	0.18	0.022
	Simpson index	0.098b	0.196a	0.025	0.044
	Chao1 index	382a	248b	26.02	0.001
Colon	OTU number	379a	204b	29.86	<0.001
	Shannon index	4.38a	3.52b	0.16	0.001
	Simpson index	0.255b	0.643a	0.008	0.009
	Chao1 index	402a	225b	30.34	<0.001

The different superscript letters in the same row represent a significant difference (p < 0.05).