Table 6.

Influence of protein digestion rates and dietary fiber sources on growth performance of broilers from day 28 to 36 of age.

Item	Rapidly digested protein		Slowly digested protein		SEM3	P-values
	SBP1	OH2	SBP1	OH2		Protein	Dietary fiber	Protein × dietary fiber
Day 28 to 36
BW4 day 36	2,142a	2,145a	2,026b	2,133a	18.49	0.005	0.038	0.001
ADFI5	149	151	147	153	1.48	0.797	0.079	0.330
ADG6	85.0a	83.0a	77.5b	83.1a,b	1.38	0.006	0.228	0.041
FCR7	1.76b	1.83b	1.91a	1.84a,b	0.025	<0.001	0.568	0.002
Overall, day 0–36
ADFI	86.7	87.7	86.3	89.8	0.889	0.147	0.068	0.153
ADG	57.8a	57.4a	54.2b	56.8a,b	0.625	0.002	0.226	0.032
FCR	1.50b	1.52b	1.59a	1.58a	0.008	<0.001	0.388	0.235

^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.