TABLE 5.

Effect of rearing temperature and feed restriction on carcass and meat yield of Cobb 500 male broiler chickens on day 42.¹

Treatments2	Hot carcass (% body weight)	Meat yield (% hot carcass weight)
		Breast	Tender	Leg quarters	Wings
CTL	71.99a	31.07a	5.05b	28.84c	10.42b
CHS	71.37a	29.18c	5.24a	30.44a	10.71a
PF	70.60b	29.99b	5.12ab	29.72b	10.37b
SEM3	0.25	0.17	0.05	0.13	0.05
P-value4	0.003	<0.001	0.036	<0.001	<0.001

^a–cIn each column, means with different letters are significantly different (P < 0.05).

¹Data represent the mean value of eight replicate pens of 15 birds/pen (n = 8).

²Treatments include: (1) control (CTL): birds raised under normal temperature (23°C) from day 29 to 42 and had free access to the diet; (2) cyclic heat stress (CHS): birds exposed to high temperatures (8 h/day at 35°C; from 9:30 am to 5:30 pm) from day 29 to 42 and had free access to the diet; (3) pair-fed (PF): birds raised under the same condition as CTL group, but fed the same amount of feed as CHS group from day 29 to 42.

³SEM: pooled standard error of means.

⁴P-value: based on one-way ANOVA.