Table 6.

Relative abundance of colonic microbiota at Phylum level in nursery pigs fed diets with different fiber solubility and lipid sources¹

Relative abundance, %	SBP		SBH		SEM	P-value
	SBO	CWG	SBO	CWG		Fiber	Lipid	F × L2
Firmicutes	61.10	59.49	60.75	61.74	2.660	0.723	0.907	0.628
Bacteroidetes	23.64	25.45	20.74	20.58	2.338	0.107	0.727	0.677
Proteobacteria	3.13	3.30	6.46	5.76	1.246	0.027	0.833	0.730
Actinobacteria	2.50	2.09	2.05	2.75	0.352	0.759	0.688	0.126
Tenericutes	1.71	2.42	2.34	1.64	0.476	0.876	0.986	0.151
Spirochaetes	0.57	1.73	2.08	1.10	0.569	0.448	0.875	0.069
TM7	2.46	1.68	1.63	1.20	0.497	0.194	0.235	0.732
Cyanobacteria	2.03	1.56	1.41	1.92	0.484	0.788	0.964	0.321
Euryarchaeota	1.64	0.53	0.98	1.26	0.449	0.935	0.358	0.132
Chlamydiae	0.92	1.20	0.72	0.80	0.395	0.453	0.650	0.789
Deferribacteres	0.30	0.55	0.73	0.45	0.359	0.647	0.965	0.472
WPS2	0.00	0.00	0.11	0.80	0.405	0.271	0.398	0.398

¹SBP, sugar beet pulp; SBH, soybean hulls; SBO, soybean oil; and CWG, choice white grease.

²F × L, fiber by lipid interaction.