Gut microbiota and host genetics contribute to the phenotypic variation of digestive and feed efficiency traits in growing pigs fed a conventional and a high fiber diet

Table 1 Microbiabilities estimated for three OTU filtering scenarios with Model Micro, i.e. without filtering (14,366 OTU), by filtering the OTU present in more than five samples and with an average abundance higher than 0.001% (2399 OTU), or higher than 0.01% (803 OTU)

	CO diet			HF diet
	14,366 OTU	2399 OTU	803 OTU	14,366 OTU	2399 OTU	803 OTU
Feed efficiency and growth traits
FCR	0.27 ± 0.08	0.20 ± 0.05	0.17 ± 0.04	0.14 ± 0.05	0.17 ± 0.05	0.14 ± 0.04
DFI	0.35 ± 0.06	0.35 ± 0.06	0.25 ± 0.05	0.41 ± 0.09	0.35 ± 0.06	0.29 ± 0.05
ADG	0.15 ± 0.05	0.20 ± 0.06	0.18 ± 0.05	0.30 ± 0.09	0.27 ± 0.07	0.21 ± 0.05
RFI	0.29 ± 0.08	0.22 ± 0.05	0.18 ± 0.04	0.28 ± 0.04	0.28 ± 0.07	0.18 ± 0.04
Digestive efficiency traits
DC of energy	0.57 ± 0.07	0.48 ± 0.06	0.33 ± 0.05	0.74 ± 0.05	0.67 ± 0.06	0.50 ± 0.06
DC of organic matter	0.60 ± 0.07	0.47 ± 0.06	0.33 ± 0.05	0.75 ± 0.05	0.68 ± 0.06	0.49 ± 0.06
DC of nitrogen	0.73 ± 0.06	0.54 ± 0.02	0.49 ± 0.05	0.75 ± 0.05	0.67 ± 0.03	0.51 ± 0.06

CO diet: growing pigs fed a conventional diet; HF diet: growing pigs fed a high fiber diet
Microbiability values are the posterior means of the a posteriori distribution with their respective posterior standard deviations
FCR feed conversion ratio, DFI daily feed intake, ADG average daily gain, RFI residual feed intake, DC digestibility coefficient

ISSN: 1297-9686