Table 1.
Effect of photoperiod on growth performance in broiler chicks from 0 to 7 days

Parameters	Photoperiod (L/D)			SEM1	P-value
	24 L	22 L/2D	18 L/6D
Initial body weight (g/bird)	57.1	56.9	56.9	0.12	0.48
Final body weight (g/bird)	166.4a	161.6ab	157.2b	1.79	<0.05
Body weight gain (g/bird)	109.3a	104.7ab	100.3b	1.75	<0.05
Feed intake (g/bird)	157.2	167.6	162.0	4.22	0.27
FCR (feed/gain)	1.44b	1.59ab	1.62a	0.04	<0.05

SEM, standard error of means.
Means in the same rows with different superscripts are significantly different (P<0.05).