Table 4.

Influence of protein digestion rates and dietary fiber sources on growth performance of broilers from day 0 to 14 of age.

Item	Rapidly digested protein		Slowly digested protein		SEM3	P-values
	SBP1	OH2	SBP1	OH2		Protein	Dietary fiber	Protein × dietary fiber
Initial BW4	39.2	39.6	39.3	39.3	0.341	0.546	0.189	0.281
Day 0 to 8
BW day 8	171.0b	172.0b	168.0b	180.0a	2.33	0.302	0.003	0.011
ADFI5	20.6	21.4	20.9	22.3	0.406	0.132	0.007	0.395
ADG6	16.4b	16.5b	16.1b	17.4a	0.281	0.240	0.005	0.018
FCR7	1.26	1.30	1.30	1.28	0.016	0.426	0.580	0.081
Day 8 to 14
BW day 14	443.0b	448.0b	438.0b	467.0a	5.01	0.065	0.006	0.009
ADFI	51.2b	52.0b	52.1b	56.5a	0.570	<0.001	<0.001	0.001
ADG	38.7b	39.3b	38.3b	40.8a	0.514	0.099	<0.001	0.005
FCR	1.32b	1.32b	1.36b	1.38a	0.008	<0.001	0.014	0.008
Day 0 to 14
ADFI	34.5b	35.2b	35.4b	38.0a	0.460	0.001	0.003	0.082
ADG	26.7b	26.8b	26.4b	28.2a	0.414	0.113	0.007	0.010
FCR	1.29b	1.31b	1.34a	1.35a	0.070	0.001	0.356	0.662

^a,bMeans not sharing the same superscript letter across each row differ at P ≤ 0.05 based on the interactive effect.

¹Sugar beet pulp.

²Oat hull.

³SEM (n = 12).

⁴BW, g.

⁵ADFI, g/d.

⁶ADG, g/d.

⁷Feed conversion ratio, g/g.