TABLE 1.

Total feed intake, total body weight gain, and residual feed intake values of low- and high-RFI broiler chickens receiving either a fecal microbiota transplant or a control transplant

Parameter	Mean wt (g) and pooled SEMa					P
	FMT		CT		SEM
	Low RFI	High RFI	Low RFI	High RFI		FMT	RFI	FMT×RFI
Both sexes
TFI	2315	2631	2327	2568	57.3	0.665	<0.001	0.517
TBWG	1641	1654	1656	1640	39.8	0.980	0.964	0.724
RFI	−108	198	−117	155	25.2	0.310	<0.001	0.506
Females
TFI	2233	2544	2117	2366	82.2	0.087	0.002	0.707
TBWG	1564	1516	1472	1444	45.0	0.081	0.407	0.837
RFI	−104	259	−103	192	38.8	0.405	<0.001	0.390
Males
TFI	2398	2694	2537	2770	85.7	0.221	0.005	0.713
TBWG	1710	1789	1841	1837	63.2	0.163	0.551	0.517
RFI	−105	128	−130	118	31.7	0.591	<0.001	0.814

^aTotal feed intake (TFI), total body weight gain (TBWG) and residual feed intake (RFI) were calculated for the experimental period from 9 to 30 dph. Data are presented as least-square means and pooled SEM. FMT, fecal microbiota transplant; CT, control transplant. Low-RFI FMT females, n = 8; low-RFI FMT males, n = 7; high-RFI FMT females, n = 7; high-RFI FMT males, n = 6; low-RFI CT females, n = 7; low-RFI CT males, n = 7; high-RFI CT females, n = 7; high-RFI CT males, n = 7. Sex affected both TFI and TBWG (P < 0.001) and RFI (P < 0.05).