Table 3. Information of sequence and bacterial diversity.

Sample1	Number of reads	Number of OTUs	Shannon index	Simpson index	Chao1 index	Observed species
1	4863	3193	10.86	1.00	20516.69	3177.51
2	6847	3360	10.28	1.00	20088.93	3356.32
3	7214	4988	11.76	1.00	32274.75	4941.46
4	7842	3579	9.53	0.98	22334.43	3575.83
5	10760	3432	8.89	0.98	18681.81	3422.74
6	13474	3695	8.46	0.98	21053.80	3684.81
7	7860	2161	7.83	0.97	14693.22	2153.42
8	8515	1628	6.92	0.96	8920.13	1614.82

¹The first four and the last four numbers represent the samples with LAB additives (AD-I, AD-II, AD-III and AD-IV) before and after fermentation respectively.