Table 3. Alpha diversity of the gut microbiome metagenomics.

Sample	shannon	chao1	Gene number
I-1	17.00	1,012,086	842,437
I-2	17.50	1,558,589	1,250,094
II-2	16.31	1,205,269	920,298
II-3	15.79	748,586	564,231
II-5	16.05	1,254,924	986,863
III-1	17.89	1,545,801	1,289,158
III-2	16.37	875,557	701,548
III-3	16.86	983,039	812,747

Note: Shannon, chao1 and gene number are three different calculation indicators for the diversity analysis. chao1 and Gene number index can reflect the species richness of the community, whereas Shannon index can reflect the species diversity of the community, considering both species richness and evenness.