Table 6.

Mean relative abundance of phyla classified in the rumen solid fraction of Simmental bulls phenotypically divergent for residual feed intake (RFI).

	Solid
Phylum	HRFI	LRFI	P-value	FDR	Log2 LRF1/HRFI	ρ	P-value
HRFI n = 13 LRFI n = 11
F:B	1.31	1.19	NS	NS	n/a	-0.42	<0.05
Actinobacteria	1.80	1.73	NS	NS	-0.06	0.41	<0.1
Bacteroidetes	31.95	33.44	NS	NS	0.07	-0.21	NS
Chloroflexi	0.30	0.40	NS	NS	0.45	-0.11	NS
Cyanobacteria	0.55	0.77	NS	NS	0.47	-0.34	<0.1
Elusimicrobia	0.05	0.07	NS	NS	0.41	-0.16	NS
Euryarchaeota	5.75	6.03	NS	NS	0.07	-0.10	NS
Fibrobacteres	0.91	3.42	<0.05	NS	1.92	-0.47	<0.05
Firmicutes	41.96	39.72	NS	NS	-0.08	0.43	<0.05
LD1	0.00	0.00	NS	NS	-3.27	-0.07	NS
Lentisphaerae	0.06	0.06	NS	NS	-0.08	-0.26	NS
Planctomycetes	0.17	0.39	NS	NS	1.16	-0.22	NS
Proteobacteria	11.90	8.49	NS	NS	-0.49	0.03	NS
Spirochaetes	2.28	2.57	NS	NS	0.18	-0.15	NS
SRI	0.01	0.01	NS	NS	0.96	0.11	NS
Synergistetes	0.10	0.15	NS	NS	0.66	-0.22	NS
Tenericutes	0.83	0.97	NS	NS	0.21	-0.27	NS
TM7	0.67	0.74	NS	NS	0.15	0.07	NS
Verrucomicrobia	0.36	0.57	NS	NS	0.69	-0.32	NS
WPS-2	0.09	0.09	NS	NS	-0.04	-0.16	NS

P-values are derived using a Wilcoxon Rank Sum test to assess the differences between treatments with FDR correction. The fold change between LRFI and HRFI bulls is also recorded in the table as is the correlation coefficient (ρ) and P-value for each phylum and RFI group.