Table 4.

Performance of broiler chickens from d 11 to 24 in response to different rearing methods and dietary protein level.

Gender	Protein level	BWG	FI	FCR
Male	SCP	1,138a	1,591	1.398
	RCP	999c	1,494	1.496
Female	SCP	994c	1,454	1.463
	RCP	925d	1,427	1.544
Mix	SCP	1,062b	1,509	1.420
	RCP	946cd	1,437	1.521
Main effects
Rearing method
Female		960	1,440b	1.504a
Male		1,069	1,542a	1.447b
Mix		1,004	1,473b	1.470ab
CP level
RCP		957	1,452 b	1.520a
SCP		1,065	1,518a	1.427b
P-value
Rearing method	< 0.001	< 0.001	0.002
CP level	< 0.001	< 0.001	< 0.001
Rearing method × protein level	0.040	0.095	0.784

Abbreviations: BWG, body weight gain per bird; CP, crude protein; FI, feed intake per bird; FCR, feed conversion ratio; RCP, reduced protein; SCP, standard protein.

^a,b,c,dMeans in a column not sharing the same superscripts are significantly different according to Tukey test (P < 0.05).