TABLE 6.

Relative abundance of taxa in the Hanwoo and Holstein steers fed by different feeding systems.

Classification	Total Sequences (%)				SEM	P-Value			Function
	Hanwoo		Holstein
	TMR	SF	TMR	SF		Breed	FS	Breed × FS
Archaea: Bacteria	0.010	0.014	0.007	0.005	0.003	0.022	0.787	0.041
Phylum level
Euryarchaeota	0.942	1.358	0.729	0.527	0.300	0.022	0.790	0.041	Hydrogenotrophic, H2 (U)
Fibrobacteres	0.270	0.222	0.610	0.208	0.117	0.188	0.079	0.156	Cellulolytic, acetate, formate, lactate (P)
Planctomycetes	0.191	0.480	0.136	0.247	0.069	0.062	0.016	0.221	NH3 oxidation, N2 (P)
Synergistetes	0.045	0.044	0.012	0.026	0.008	0.011	0.472	0.153	Saccharolytic
Genus/family level
Ruminococcus	6.945	9.381	11.037	5.320	2.024	0.994	0.433	0.067	Cellulolytic, acetate, formate, lactate (P)
Coriobacteriaceae	0.518	1.046	1.395	1.615	0.352	0.093	0.401	0.639	Acetate and lactate (P)
Bifidobacteriaceae	2.063	1.412	0.038	0.082	0.555	0.057	0.392	0.335	Acetate and lactate (P)
Methanobrevibacter	0.874	1.297	0.697	0.500	0.292	0.025	0.773	0.046	Hydrogenotrophic, H2 (U)
CF231	1.026	0.618	1.367	0.264	0.382	0.975	0.256	0.094	Proteolytic, NH3 (P)
Succiniclasticum	1.370	0.485	0.330	0.461	0.299	0.099	0.225	0.113	Succinate (U), propionate (P)
Christensenellaceae	0.385	0.436	0.388	0.148	0.194	0.453	0.326	0.045	Fibre degrader
Fibrobacter	0.270	0.222	0.610	0.208	0.117	0.188	0.079	0.156	VFA (P)
p-75-a5	0.240	0.360	0.449	0.170	0.065	0.886	0.244	0.009	Fibrolytic
Pirellulaceae	0.191	0.480	0.135	0.247	0.070	0.061	0.016	0.222	NH3 oxidation, N2 (P)
Lactobacillus	0.056	0.580	0.112	0.079	0.116	0.060	0.240	0.031	Lactate (P)
BF311	0.289	0.254	0.127	0.088	0.077	0.053	0.625	0.979	Lignocellulose digestion
Selenomonas	0.406	0.081	0.107	0.042	0.081	0.060	0.035	0.133	Acetate, propionate, formate, lactate (P)
Bulleidia	0.031	0.044	0.028	0.506	0.153	0.062	0.420	0.048	Acetate, lactate, succinate (P)
Anaerovibrio	0.253	0.057	0.077	0.052	0.041	0.031	0.012	0.039	Succinate, propionate (P)
Desulfovibrio	0.126	0.065	0.051	0.112	0.039	0.676	0.990	0.086	Sulphur oxidation
Clostridiaceae	0.062	0.114	0.067	0.081	0.016	0.506	0.030	0.163	Glucose assimilation
Lachnospira	0.012	0.010	0.002	0.266	0.095	0.083	0.398	0.062	Acetate, formate, lactate (P)
Bacteroides	0.014	0.134	0.090	0.009	0.037	0.483	0.674	0.051	VFA (P)
Enterobacteriaceae	0.025	0.081	0.041	0.035	0.025	0.372	0.536	0.077	N2 fixation
Atopobium	0.020	0.046	0.026	0.046	0.008	0.738	0.020	0.717	Lactate (P)
Spirochaetaceae	0.053	0.042	0.028	0.008	0.016	0.014	0.053	0.535	Pectinolytic, Formate, acetate, lactate (P)
vadinCA11	0.052	0.040	0.015	0.013	0.007	0.007	0.420	0.472	Methylotrophic
Pseudomonas	0.011	0.018	0.018	0.070	0.015	0.025	0.282	0.030	Degrader
Dehalobacterium	0.031	0.052	0.026	0.007	0.024	0.400	0.910	0.078	H2 oxidation
Peptostreptococcaceae	0.003	0.007	0.030	0.074	0.023	0.081	0.476	0.104	N.I.
Pyramidobacter	0.033	0.030	0.010	0.026	0.008	0.059	0.528	0.092	Iso-fatty acids (P)
Weissella	0.016	0.043	0.014	0.016	0.008	0.122	0.030	0.050	Lactate (P)
Leuconostoc	0.012	0.026	0.009	0.009	0.009	0.373	0.429	0.041	Lactate (P)

The table only includes taxa represented in >0.01% of the total sequences that tended to differ (0.05 < P < 0.1) and showed significant differences (P < 0.05).

FS, feeding system; N.I., no information; P, producer; SF, separate feeding; TMR, total mixed ration; U, utiliser; VFA, volatile fatty acids.

Data are least square means with standard error.

Number of steers = 8.