Table 2.

Effects of pair-feeding or heat stress on the response to metabolic challenges.

Parameter	P11*		Day 1–2 of P2		Day 6–7 of P2		SEM	P
	PFTN2	HS3	PFTN	HS	PFTN	HS		Trt4	Day	TXD5
Glucose tolerance test
Glucose AUC6, mg/dL·min	1991	1712	2257a	2595b	2273a	2189a	97	0.32	0.01	0.01
Glucose delta, mg/dL	172.6	171.4	186.1ab	198.3b	190.6ab	178.6a	7.5	0.99	0.18	0.04
Glucose disappearance, mg/dL/min	8.50	8.98	7.54	6.69	8.61	7.44	0.48	0.07	0.06	0.72
Insulin AUC, ng/mL·min	9.06	7.52	8.82	6.16	6.75	6.13	0.53	0.02	0.06	0.06
Insulin delta, ng/mL	0.58	0.54	0.47	0.39	0.43	0.36	0.03	0.06	0.11	0.89
Insulinogenic index, AU	5.20	4.85	4.53b	2.50a	3.68a	3.03a	0.43	0.04	0.47	0.01
Epinephrine challenge
NEFA AUC, μEq/L·min	812	1260	1717	1309	1332	381	198	0.01	<0.01	0.17
Glucose AUC, mg/dL·min	519	433	620	580	689	685	77	0.80	0.23	0.80

¹Period.

²Pair-fed thermoneutral.

³Heat stress.

⁴Treatment.

⁵Treatment by day interaction.

⁶Area under the curve.

⁷*Represents period 1 values that were statistically used as covariate.

^a,bMeans with different superscript differ (P ≤ 0.05).