Table 2.

Alpha diversity of jejunal mucosa-associated microbiota at the species level in nursery pigs fed diets with increasing levels of xylanase and β-glucanase combination (XG)^a

Item	XG, (TXU/TGU)/kg					SEMb	P value
	0	280/125	560/250	840/375	1,120/500		Linear	Quadratic
Chao 1	268.9	290.0	402.0	233.6	232.6	91.7	0.663	0.360
Shannon	4.37	5.37	5.28	4.56	4.20	0.79	0.642	0.263
Simpson	0.74	0.94	0.91	0.87	0.75	0.10	0.906	0.098

^aExperimental unit was a pig and each level had 4 replicates (totaling 20 observations), representing the approximate median BW of each level

^bSEM Standard error of the means