Table 7.

α-Diversity of jejunal mucosa-associated microbiota estimated with Chao1 richness, Shannon diversity, and Simpson diversity

	β-Glucanase, U/kg feed1					P-value
Items	0.0	200	400	600	SEM	Linear	Quadratic	0 vs. others
Family
Chao1	11.60	14.50	17.4	16.06	3.30	0.156	0.396	0.130
Shannon	1.74	1.58	1.95	1.91	0.26	0.396	0.808	0.766
Simpson	0.55	0.49	0.58	0.58	0.07	0.556	0.638	0.982
Genus
Chao1	9.81	12.60	13.80	14.06	2.27	0.121	0.517	0.106
Shannon	1.57	1.43	1.73	1.65	0.25	0.599	0.913	0.891
Simpson	0.52	0.46	0.54	0.50	0.07	0.884	0.848	0.801
Species
Chao1	12.2	15.17	16.20	16.36	2.77	0.236	0.573	0.199
Shannon	1.95	2.06	1.98	2.06	0.33	0.883	0.967	0.941
Simpson	0.57	0.57	0.57	0.56	0.09	0.958	0.990	0.958

¹Four supplemental levels of β-glucanase (N = 40 total, n = 10 per supplemental level).