Table 3.

Regression estimates, standard errors, F, and p-values when regressing OTUs on growth, metabolism, and feed efficiency variables. The model also contained regression on day and random effects of animal (utilizing genomic relationships) and tank, for which variance components are included

Dependent variable	Variables	Estimate	Stderr	F value	p-value	Variance component
WG	Day	3.338	0.177	355.73	< 0.005
	OTU1	− 0.324	0.376	0.15	NS
	OTU2	2.191	1.199	0.04	NS
	OTU3	− 1.352	0.624	4.66	< 0.05
	OTU5	− 0.743	0.535	1.78	NS
	OTU6	− 0.440	0.866	0.26	NS
	OTU7	0.179	0.492	0.30	NS
	Tank					13.84 ± 3.25
	Animal					5.54 ± 0.69
AAC	Day	0.082	0.019	17.95	< 0.005
	OTU1	0.007	0.003	1.39	NS
	OTU2	− 0.016	0.009	2.15	NS
	OTU3	− 0.001	0.005	1.31	NS
	OTU5	0.006	0.004	4.63	< 0.05
	OTU6	− 0.001	0.007	0.01	NS
	OTU7	0.010	0.004	8.53	< 0.005
	Tank					0.90 ± 0.20
	Animal					0.87 × 10−4 ± 2.21 × 10−4
IFER_AMC	Day	0.365	0.021	297.49	< 0.005
	OTU1	0.043	0.026	5.55	< 0.03
	OTU2	− 0.101	0.083	0.41	NS
	OTU3	0.018	0.043	1.34	NS
	OTU5	− 0.023	0.037	0.03	NS
	OTU6	0.035	0.060	0.34	NS
	OTU7	0.081	0.034	5.22	< 0.03
	Tank					0.20 ± 0.04
	Animal					0.43 × 10−2 ± 1.51 × 10−3
IFER_AMN	Day	0.149	0.009	273.21	< 0.005
	OTU1	0.020	0.009	3.89	< 0.05
	OTU2	− 0.026	0.027	2.86	NS
	OTU3	0.001	0.014	0.64	NS
	OTU5	− 0.016	0.012	0.79	NS
	OTU6	0.008	0.020	0.16	NS
	OTU7	0.027	0.011	5.83	< 0.03
	Tank					0.04 ± 7.86 × 10−3
	Animal					0.29 × 10−3 ± 1.51 × 10−4