Table 1.

Diversity estimates of microbial communities.

		Mean ± SD
Group	Tissue	Observed OTUs	Chao1	Shannon	Simpson
Control	Feces-start	2225 ± 194.54	2889.58 ± 156.99	4.38 ± 0.27	0.94 ± 0.03
	Feces-end	2085.38 ± 318.54	2784.42 ± 381.64	4.04 ± 0.6	0.92 ± 0.03
	Ileum	1101.75 ± 161.93	1611.59 ± 166.33	2.59 ± 0.89	0.77 ± 0.23
	ICLN	436.88 ± 176.75	759.28 ± 270.57	3.55 ± 0.21	0.89 ± 0.04
AB	Feces-start	2365.13 ± 279.28	2998.69 ± 226.2	4.36 ± 0.58	0.93 ± 0.04
	Feces-end	1900 ± 213.57	2513.66 ± 260.61	3.84 ± 0.63	0.91 ± 0.05
	Ileum	1165.75 ± 197.66	1716.42 ± 271.46	2.94 ± 0.57	0.84 ± 0.8
	ICLN	361.5 ± 184.04	617.12 ± 291.39	3.52 ± 0.25	0.89 ± 0.05
		p-value
Ileum – Feces-start		< 0.0001	< 0.0001	< 0.0001	0.0017
Ileum – Feces-end		< 0.0001	< 0.0001	< 0.0001	0.0055
Ileum – ICLN		0.0297	0.0009	0.0884	0.0203
Feces-start – Feces-end		0.0297	0.0164	0.0358	0.5315
Feces-start – ICLN		< 0.0001	< 0.0001	< 0.0001	0.3156
Feces-end – ICLN		< 0.0001	0.0343	< 0.0001	0.5315
Feces-end AB – Feces-end C		0.2025	0.1422	0.4722	0.8638
Ileum AB – Ileum C		0.3638	0.2316	0.4482	0.3710
ICLN AB – ICLN C		0.8695	0.941	0.989	0.9707

Absolute values represent data from the full dataset. p-values were calculated with the rarefied dataset. SD, Standard deviation; AB, Antibiotic group; C, Control group; ICLN, Ileocecal lymph node.