Table 3.

Means (SD) of marginal posterior distributions of the heritability (h²), microbiability (m²) and phenotypic variance (Phe. Var.) for individual traits (ADG_AL and ADG_R) and cage-average traits (${\overline{\text{ADFI}}}_{\text{AL}}$, ${\overline{\text{ADRFI}}}_{\text{AL}}$ and ${\overline{\text{ADFCRI}}}_{\text{AL}}$) obtained with the fullDataset by expanding the OTU matrix with the cage-average counts.

Parameter	Model	Microbial matrixa	ADGAL	ADGR	${\overline{\text{ADFI}}}_{\text{AL}}$	${\overline{\text{ADRFI}}}_{\text{AL}}$	${\overline{\text{ADFCR}}}_{\text{AL}}$
h2	M1	–	0.15 (0.09)	0.09 (0.07)	0.26 (0.18)	0.49 (0.20)	0.34 (0.20)
Phe. Var.	M1	–	79.79 (4.67)	57.02 (3.40)	635.14 (102.99)	206.59 (33.06)	0.20 (0.03)
h2	M2	${\mathbf{M}}_{\overline{\mathbf{O}}}$	0.14 (0.09)	0.09 (0.07)	0.24 (0.17)	0.44 (0.19)	0.30 (0.18)
m2	M2	${\mathbf{M}}_{\overline{\mathbf{O}}}$	0.08 (0.05)	0.00 (0.00)	0.03 (0.06)	0.10 (0.12)	0.16 (0.09)
Phe. Var.	M2	${\mathbf{M}}_{\overline{\mathbf{O}}}$	85.71 (6.42)	57.08 (3.40)	635.52 (102.28)	209.30 (34.46)	0.21 (0.03)
h2	M2	${\mathbf{M}}_{\overline{\mathbf{B}}}$	0.09 (0.06)	0.09 (0.07)	0.16 (0.12)	0.23 (0.13)	0.20 (0.14)
m2	M2	${\mathbf{M}}_{\overline{\mathbf{B}}}$	0.39 (0.13)	0.06 (0.03)	0.44 (0.19)	0.56 (0.17)	0.44 (0.16)
Phe. Var.	M2	${\mathbf{M}}_{\overline{\mathbf{B}}}$	133.31 (32.36)	61.00 (6.57)	1059.88 (359.15)	407.68 (135.59)	0.32 (0.09)
h2	M2	${\mathbf{M}}_{\overline{\mathbf{U}}}$	0.15 (0.09)	0.07 (0.06)	0.11 (0.10)	0.12 (0.12)	0.08 (0.08)
m2	M2	${\mathbf{M}}_{\overline{\mathbf{U}}}$	0.00 (0.00)	0.25 (0.23)	0.58 (0.24)	0.76 (0.20)	0.78 (0.17)
Phe. Var.	M2	${\mathbf{M}}_{\overline{\mathbf{U}}}$	79.83 (4.67)	88.33 (43.15)	2106.33 (1622.31)	1284.29 (948.14)	1.20 (0.80)

ADG_AL, average daily gain in rabbits fed ad libitum; ADG_R, average daily gain in rabbits fed under restriction; ${\overline{\text{ADFI}}}_{\text{AL}}$, average daily feed intake in rabbits fed ad libitum; ${\overline{\text{ADRFI}}}_{\text{AL}}$, average daily residual feed intake in rabbits fed ad libitum; ${\overline{\text{ADFCR}}}_{\text{AL}}$, average daily feed conversion ratio in rabbits fed ad libitum; SD, standard deviation; M1, model without microbial effects; M2, model fitting the microbial effects.

^aThe expansion of the microbial relationship matrix (${\mathbf{M}}_{\mathbf{O}},{\mathbf{M}}_{\mathbf{B}}\text{or}{\mathbf{M}}_{\mathbf{U}}$) was done before computing the respective distance matrices, assigning to the animals without microbial information the cage-average of the CSS normalized OTU counts.