. 2018 Nov 19;9:2698. doi: 10.3389/fmicb.2018.02698

Table 2.

Differences in relative abundance (%) of most abundant bacterial families present in feces at 16 and 29 d post-hatch (dph) in low and high residual feed intake (RFI) broiler chickens fed either ad libitum or restrictively¹.

	16 dph				29 dph
	ad libitum feeding		Restrictive feeding		ad libitum feeding		Restrictive feeding			P-value
Item	Low RFI	High RFI	Low RFI	High RFI	Low RFI	High RFI	Low RFI	High RFI	SEM	TP²	FL³	RFI	FL × RFI	TP × FL × RFI
Enterobacteriaceae	57.06	41.74	46.43	36.71	47.70	54.55	43.44	25.22	7.490	0.628	0.015	0.070	0.326	0.413
Lactobacillaceae	23.56	12.78	17.05	23.87	23.74	9.07	35.07	46.01	7.044	0.059	0.014	0.713	0.043	0.152
Ruminococcaceae	9.52	19.20	16.71	13.31	5.08	3.78	5.34	1.04	3.311	<0.001	0.902	0.944	0.092	0.410
Turicibacteraceae	0.25^b ^B	1.18^b	0.25^b ^B	0.04^b ^B	6.39^b ^A	15.78^a	1.65^b	4.17^b	2.417	<0.001	0.016	0.078	0.260	0.038
Moraxellaceae	0.91	4.09	0.66	3.42	0.51	1.50	0.51	14.54	2.678	0.327	0.092	0.004	0.079	0.084
Lachnospiraceae	1.53	3.26	4.00	1.74	0.91	1.23	1.16	0.25	0.744	0.001	0.920	0.612	0.021	0.480
Clostridiaceae	0.06	0.22	0.13	0.23	5.51	5.42	1.71	0.47	1.759	0.016	0.086	0.831	0.809	0.361
Comamonadaceae	0.15	0.14	0.05	0.27	0.01	0.03	0.05	1.45	0.266	0.234	0.046	0.029	0.030	0.061
Enterococcaceae	0.11	0.13	0.10	0.04	0.17	0.28	0.38	0.46	0.122	0.011	0.407	0.670	0.747	0.489
Peptostreptococcaceae	0.10	0.10	0.03	0.04	0.05	0.11	0.02	0.02	0.036	0.520	0.017	0.409	0.590	0.816

Data are presented as least-square means ± pooled standard error of the mean (SEM). Low RFI ad libitum, n = 7 per sex and time point; high RFI ad libitum, n = 8 females per time point, and n = 7 males per time point; low RFI restrictive, n = 7 per sex and time point; high RFI restrictive, n = 7 per sex and time point. Sex affected Enterococcaceae (P ≤ 0.10).

TP, time point.

Restr., restrictive feeding.

^{a, b}

Different superscripts within a row indicate significant difference (P ≤ 0.05).

^{A, B}

Different superscripts within a row indicate a tendency (P ≤ 0.10).

The bold values should be self-explanatory. That are the P-value which indicate significance.