Table 6.

Relative abundance (% of total reads) of selected OTUs at the cecal mucosa of finishing pigs ranked on RFI^a–c

Item	Closest reference strain (% identity similarity)	LRFI	HRFI	SEM	P-valued
OTU2	Campylobacter hyointestinalis (97%)	22.81	12.63	3.642	0.061
OTU173	Escherichia coli/Shigella flexneri (100%)	0.017	0.068	0.0145	0.023
OTU490	Ruminobacter sp. (95%)	0.002	0.016	0.0037	0.017
OTU719	Veillonella dispar (100%)	0.001	0.006	0.0021	0.085

^aValues are least squares means ± SEM.

^bHRFI, high RFI; LRFI, low RFI.

^cResidual feed intake was determined between days 42 and 91 pw (n = 8/RFI rank).

^dMain effect of RFI rank.