Table 5.

Influence of protein digestion rates and dietary fiber sources on growth performance of broilers from day 14 to 28 of age.

Item	Rapidly digested protein		Slowly digested protein		SEM3	P-values
	SBP1	OH2	SBP	OH		Protein	Dietary fiber	Protein × dietary fiber
Day 14 to 22
BW4 day 22	897a,b	913a	862b	902a,b	8.91	0.001	0.001	0.072
ADFI5	88.4	90.1	88.6	91.5	0.839	0.243	0.002	0.317
ADG6	64.5	65.3	60.2	61.2	0.868	0.001	0.196	0.834
FCR7	1.37	1.39	1.47	1.50	0.010	0.001	0.063	0.711
Day 22 to 28
BW day 28	1,464a	1,454a,b	1,406b	1,448a,b	14.82	0.017	0.214	0.052
ADFI	135b	134b	135b	140a	1.52	0.118	0.156	0.037
ADG	93.0a	91.9a	88.1b	91.0b	1.40	0.045	0.520	0.152
FCR	1.46b	1.45b	1.53a	1.54a	0.014	0.001	0.834	0.499
Day 14 to 28
ADFI	149	151	147	153	1.48	0.130	0.256	0.127
ADG	77.8a	77.3a	73.8b	74.3b	1.38	0.003	0.946	0.535
FCR	1.42b	1.42b	1.45a	1.52a	0.025	0.001	0.164	0.360

^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.