Table 3.

Body weights gain as affected by photoperiod, TSAA and their interaction.

Items	Body weight gain g bird/week
	1-2w	2-3w	3-4w	4-5w	1-5w
Photoperiod (h/day)
22	205.13a	355.26a	432.18a	891.10a	1883.67a
16	190.62b	333.06b	423.92b	673.70b	1621.30b
SEM	8.47	9.54	13.81	11.04	19.38
p-value	<0.001	0.002	0.023	<0.001	<0.001
TSAA (%)
1.30	189.23b	363.14a	444.58a	696.95c	1693.75c
1.10	206.12a	334.77b	418.31b	871.05a	1830.40a
0.90	198.24ab	334.59b	422.11b	779.35b	1734.30b
SEM	8.75	9.70	12.93	15.81	21.05
p-value	<0.001	<0.001	0.035	0.002	0.003
Interaction
22/1.30	198.49c	364.72a	446.39a	729.50c	1739.10c
22/1.10	218.34b	367.27a	422.59b	1048.50a	2056.70a
22/0.90	199.54c	333.80b	426.81b	894.40b	1854.55b
16/1.30	279.77a	261.55d	442.53a	664.35e	1648.20d
16/1.10	194.91c	302.27c	413.92c	691.85d	1602.95e
16/0.90	196.97c	335.38b	415.85c	664.05e	1612.25e
SEM	11.83	26.52	37.64	39.58	32.08
p-value	0.005	0.020	0.003	<0.001	<0.001