Table 4.

Relative abundance of jejunal mucosa-associated microbiota at the phylum level in nursery pigs fed diets with increasing supplementation of functional oils.

Item	Functional Oils, g/kg Feed 1						p-Value
	0.00	0.50	0.75	1.00	1.50	SEM	Linear	Quadratic	0 vs. Others
Proteobacteria	73.50	59.22	52.26	68.31	60.16	6.12	0.313	0.205	0.009
Firmicutes	11.97	20.50	22.12	17.17	23.32	4.24	0.013	0.258	0.009
Bacteroidetes	8.16	8.57	11.99	11.83	14.37	2.14	0.012	0.304	0.050
Actinobacteria	2.96	7.52	3.55	2.72	3.31	1.43	0.272	0.657	0.305
Others 2	0.70	0.45	4.91	0.27	0.66	0.83	0.658	0.635	0.843
F:B 3	2.08	4.04	2.30	1.42	1.10	0.56	0.054	0.979	0.870

¹ Five supplemental levels of functional oils (n = 40 total, n = 8 per supplemental level). Results showed as means presented as back-transformed estimates with a 95% confidence interval. ² Representing the combined total of all <1% abundance. ³ Firmicutes to Bacteroidetes ratio.