Table 4.

Significant (P ≤ 0.05) Pearson correlation coefficients (r) between relative abundances of operational taxonomic units (OTUs) and some of the rumen fermentation characteristics.

OTUs	DMD		Ammonia		Acetate		Propionate		Butyrate
	r	p-value	r	p-value	r	p-value	r	p-value	r	p-value
U_Prevotellaceae_34	−0.86	<0.001	−0.68	0.012	0.67	0.014	−0.79	0.002	0.71	0.008
U_Prevotellaceae_57	−0.83	<0.001	−0.70	0.01	0.73	0.006	−0.82	0.001	0.72	0.006
Prevotella_210	−0.81	0.001	−0.65	0.018	0.69	0.010	−0.81	0.001	0.73	0.005
U_Prevotellaceae_41	−0.80	0.001	−0.61	0.03	0.65	0.020	−0.77	0.002	0.71	0.008
Hallella_14	−0.80	0.001	−0.59	0.039	0.54	0.064	−0.69	0.011	0.65	0.02
Sporobacter_24	−0.80	0.001	−0.68	0.012	0.64	0.021	−0.74	0.005	0.66	0.017
Bulleidia_8	−0.80	0.001	−0.65	0.019	0.71	0.008	−0.78	0.002	0.68	0.013
U_Veillonellaceae_10	−0.80	0.001	−0.60	0.037	0.72	0.007	−0.76	0.003	0.63	0.026
Ruminococcus_26	−0.79	0.001	−0.60	0.035	0.69	0.010	−0.81	0.001	0.73	0.006
U_Bacteroidales_63	−0.79	0.001	−0.60	0.037	0.76	0.003	−0.84	<0.001	0.73	0.005
Treponema_8	−0.79	0.001	−0.65	0.02	0.75	0.004	−0.82	0.001	0.71	0.007
U_Firmicutes_2	−0.79	0.002	−0.65	0.02	0.74	0.004	−0.83	0.001	0.73	0.006
Mitsuokella_14	−0.78	0.002	−0.60	0.036	0.75	0.004	−0.80	0.001	0.68	0.012
Syntrophococcus_9	−0.78	0.002	−0.65	0.02	0.67	0.015	−0.80	0.001	0.74	0.005
Succiniclasticum_9	0.77	0.002	0.63	0.026	−0.72	0.007	0.85	<0.001	−0.77	0.003
Syntrophococcus_1	0.77	0.003	0.70	0.009	−0.41	0.187	0.63	0.025	−0.70	0.009
Sporobacter_27	−0.77	0.003	−0.62	0.027	0.63	0.026	−0.74	0.004	0.69	0.011
U_Lachnospiraceae_157	−0.76	0.003	−0.64	0.021	0.73	0.006	−0.81	0.001	0.71	0.009
LIS_95	−0.76	0.003	−0.64	0.023	0.72	0.006	−0.80	0.001	0.70	0.01
Prevotella_127	−0.76	0.003	−0.50	0.091	0.52	0.078	−0.71	0.008	0.69	0.011
U_Prevotellaceae_24	−0.76	0.003	−0.56	0.055	0.68	0.013	−0.80	0.001	0.73	0.005
Prevotella_91	−0.74	0.004	−0.55	0.059	0.43	0.160	−0.66	0.016	0.70	0.009
Prevotella_143	−0.74	0.005	−0.54	0.067	0.77	0.003	−0.81	0.001	0.67	0.015
U_Lachnospiraceae_124	−0.73	0.006	−0.51	0.085	0.42	0.173	−0.66	0.018	0.69	0.01
Prevotella_108	−0.73	0.006	−0.53	0.071	0.46	0.127	−0.64	0.022	0.64	0.021
U_Bacteroidales_29	−0.71	0.007	−0.47	0.12	0.59	0.040	−0.75	0.003	0.69	0.011
Prevotella_18	−0.71	0.008	−0.45	0.136	0.60	0.035	−0.73	0.006	0.67	0.015
Prevotella_122	−0.70	0.01	−0.46	0.13	0.33	0.290	−0.57	0.048	0.62	0.029
U_IS_XIII_4	−0.69	0.01	−0.49	0.104	0.70	0.010	−0.74	0.005	0.62	0.029
U_Prevotellaceae_47	−0.69	0.011	−0.50	0.096	0.75	0.004	−0.74	0.004	0.59	0.041
U_Prevotellaceae_31	−0.66	0.017	−0.48	0.111	0.28	0.384	−0.42	0.171	0.42	0.174
U_Lachnospiraceae_137	0.66	0.017	0.53	0.074	−0.19	0.559	0.45	0.136	−0.55	0.057
U_Erysipelotrichaceae_10	−0.66	0.018	−0.44	0.151	0.70	0.010	−0.73	0.006	0.61	0.033
U_Ruminococcaceae_23	−0.65	0.019	−0.54	0.068	0.47	0.118	−0.63	0.024	0.64	0.021
Prevotella_238	−0.64	0.021	−0.39	0.203	0.44	0.144	−0.63	0.025	0.63	0.026
Butyrivibrio_25	0.63	0.023	0.39	0.204	−0.40	0.191	0.47	0.114	−0.39	0.208
Prevotella_142	−0.63	0.024	−0.45	0.138	0.58	0.044	−0.72	0.007	0.68	0.013
LIS_32	0.61	0.033	0.38	0.222	−0.39	0.208	0.54	0.064	−0.56	0.051
U_Lachnospiraceae_26	−0.60	0.037	−0.41	0.178	0.45	0.134	−0.66	0.017	0.66	0.018
Prevotella_252	−0.60	0.037	−0.41	0.187	0.46	0.130	−0.66	0.018	0.65	0.02
Treponema_3	−0.59	0.038	−0.41	0.186	0.45	0.134	−0.66	0.018	0.65	0.019
LIS_76	0.58	0.046	0.36	0.249	−0.29	0.356	0.50	0.096	−0.57	0.05
Dialister_1	0.57	0.047	0.38	0.22	−0.20	0.533	0.43	0.154	−0.52	0.076
U_Ruminococcaceae_49	0.57	0.048	0.42	0.169	−0.19	0.556	0.36	0.248	−0.41	0.18
LIS_37	0.57	0.049	0.37	0.232	−0.50	0.094	0.60	0.034	−0.55	0.059
U_Clostridia_81	0.42	0.175	0.58	0.045	−0.08	0.798	0.33	0.284	−0.47	0.114
U_Clostridiales_59	0.42	0.175	0.58	0.046	−0.12	0.721	0.36	0.251	−0.49	0.104
U_Lachnospiraceae_110	0.42	0.167	0.58	0.046	−0.38	0.223	0.49	0.1	−0.50	0.096
Mitsuokella_1	0.39	0.21	0.56	0.054	−0.06	0.858	0.33	0.295	−0.49	0.103
Butyrivibrio_58	0.47	0.118	0.33	0.288	−0.82	0.001	0.69	0.011	−0.44	0.143
U_Lachnospiraceae_46	−0.52	0.078	−0.29	0.361	0.70	0.010	−0.64	0.021	0.47	0.121
U_Ruminococcaceae_214	−0.55	0.061	−0.31	0.325	0.66	0.018	−0.57	0.048	0.38	0.22
LIS_80	0.25	0.434	0.14	0.672	−0.66	0.018	0.53	0.069	−0.34	0.273
U_Bacteroidales_207	−0.43	0.158	−0.31	0.321	0.63	0.026	−0.40	0.197	0.10	0.754
U_Lachnospiraceae_204	−0.38	0.222	−0.34	0.274	0.62	0.027	−0.49	0.102	0.24	0.453
U_Lachnospiraceae_172	−0.47	0.114	−0.19	0.551	0.59	0.041	−0.55	0.062	0.39	0.206
Bulleidia_7	0.48	0.109	0.25	0.431	−0.51	0.088	0.60	0.034	−0.55	0.059
Prevotella_43	−0.46	0.128	−0.21	0.515	0.41	0.176	−0.58	0.045	0.57	0.05
LIS_69	0.35	0.255	0.32	0.307	−0.37	0.236	0.52	0.076	−0.61	0.032
Prevotella_121	−0.54	0.066	−0.35	0.264	0.24	0.443	−0.49	0.101	0.57	0.05

U, unclassified; LIS, Lachnospiraceae incertae sedis.