Table 1.

Effects of pair-feeding or heat stress on body temperature indices and feed intake.

	Day									SEM	P
	P1*	1	2	3	4	5	6	7	8		Trt1	Day	TXD2
Tr3, °C
PFTN4	39.32	39.08c	38.95b	38.92b	38.74a	38.82ab	38.83ab	38.82ab	38.82ab	0.10	<0.01	<0.01	<0.01
HS5	39.36	40.06d	40.73g	40.50f	40.31e	40.26de	40.29de	40.27de	40.26de	0.12
RR, bpm6
PFTN	40	34b	23a	21a	21a	19a	22a	24a	22a	4	<0.01	<0.01	<0.01
HS	32	88c	118f	98de	100de	96cd	105e	98de	92de	5
FI7, kg
PFTN	2.01	1.20x	1.16x	1.20x	1.15x	1.19x	1.18x	1.55y	1.23x	0.05	0.75	<0.01	0.99
HS	1.97	1.19x	1.14x	1.19x	1.14x	1.18x	1.16x	1.53y	1.21x	0.06

¹Treatment.

²Treatment by day interaction.

³Rectal temperature.

⁴Pair-fed thermoneutral.

⁵Heat stress.

⁶Respiration rate, breaths per minute.

⁷Feed intake.

⁸*Represents period 1 values that were statistically used as covariate.

^a–fMeans with different superscript differ (P ≤ 0.05).

^x,yDays with different superscript differ (P ≤ 0.05).