Table 8.

Changes in α-diversity of gut microbiota communities.

Group	Mn (mg/Kg)	Bacillus subtilis (BS) (CFU/Kg)	Chao1 index	Simpson index	Shannon index	Coverage
I	10	5 × 109	1685.76	0.704	4.48	0.9889
II	20	5 × 109	1988.49	0.874	4.27	0.9871
III	30	5 × 109	1753.85	0.586	4.36	0.9875
IV	10	2.5 × 109	2123.28	0.371	4.95	0.9882
V	20	2.5 × 109	1582.37	0.456	4.46	0.9915
VI	30	2.5 × 109	1992.54	0.292	4.87	0.9891
	10		1904.52	0.537	4.72	0.9886
	20		1785.43	0.665	4.37	0.9893
	30		1873.15	0.439	4.62	0.9883
		5 × 109	1809.37	0.721	4.37	0.9878
		2.5 × 109	1899.40	0.373	4.77	0.9896
	SEM		457.82	0.37	0.57	0.04
	P value	Mn	0.910	0.068	0.601	0.925
		BS	0.704	0.582	0.192	0.428
		Mn × BS	0.333	0.957	0.873	0.632