Table 2.

Genetic parameters for feed efficiency traits, including only genetic, only microbiota, or both effects, with the 95% highest posterior density (in brackets) using microbiota at 140 d of age

	Model G		Model M		Model GM
Trait	${\mathrm{h}}^2$	DIC	${\mathrm{m}}^2$	DIC	${\mathrm{h}}^2$	${\mathrm{m}}^2$	DIC
ADG	0.40 [0.17, 0.62]	−395	0.23 [0.08, 0.43]	−352	0.30 [0.09, 0.53]	0.16 [0.04, 0.30]	−396
ADFI	0.28 [0.08, 0.51]	65	0.20 [0.07, 0.37]	79	0.21 [0.05, 0.41]	0.16 [0.05, 0.31]	58
FCR	0.21 [0.06, 0.39]	232	0.16 [0.06, 0.30]	238	0.16 [0.05, 0.33]	0.13 [0.04, 0.25]	229
BW180	0.36 [0.16, 0.57]	1,096	0.34 [0.15, 0.55]	1,113	0.24 [0.07, 0.42]	0.25 [0.09, 0.43]	1,082
RFI	0.21 [0.06, 0.40]	1.27	0.17 [0.06, 0.31]	4.95	0.15 [0.04, 0.31]	0.14 [0.04, 0.26]	−2.96
FPV	0.43 [0.23, 0.63]	1,576	0.25 [0.08, 0.44]	1,632	0.35 [0.15, 0.55]	0.15 [0.05, 0.28]	1,570
FR	0.23 [0.08, 0.39]	992	0.19 [0.06, 0.35]	1,015	0.19 [0.06, 0.35]	0.14 [0.04, 0.28]	990
NVD	0.34 [0.14, 0.55]	783	0.21 [0.07, 0.39]	810	0.26 [0.08, 0.46]	0.15 [0.05, 0.28]	776
TPV	0.42 [0.22, 0.62]	1,822	0.18 [0.06, 0.33]	1,883	0.36 [0.15, 0.57]	0.11 [0.04, 0.21]	1,824

${\mathrm{h}}^2$ , heritability;${\mathrm{m}}^2$, microbiability;${\mathrm{h}}_{\mathrm{d}}^2$, direct heritability; ADG, average daily gain; ADFI, daily feed intake; FCR, feed conversion ratio; BW180, body weight at 180 d; RFI, residual feed intake; FPV, feed intake per visit; FR, feeding rate; NVD, number of visits per day; TPV, time spent in feeding per visit; DIC, deviance information criterion.