Table 3.

CBT and extremity T (°C) of white-feathered layer pullets during simulated transport exposed to 5 T/RH combinations (−15°C uncontrolled RH, 21°C 30% RH, 21°C 80% RH, 30°C 30% RH, and 30°C 80% RH) for a D of 4 or 8 h.

Parameter	T/RH combinations					P-value	D		P-value	Interaction P-value	SEM1
	−15	21/30	21/80	30/30	30/80		4 h	8 h
Final CBT2	38.24b	40.00a	39.91a	40.61a	40.75a	<0.01	39.64	40.15	NS	NS	0.24
Δ CBT3	−0.62	0.53	0.21	0.43	0.56	0.08	−0.11b	0.53a	0.03	NS	0.16
Final foot temperature	12.97d	30.18c	32.48b	34.45a,b	35.20a	<0.01	27.47	27.75	NS	NS	2.02
Δ Foot temperature4	−15.28	−2.24	3.37	4.00	6.47	NS	−2.53	−1.43	NS	NS	2.02

^a–dMeans within a parameter with different superscripts are significantly different (P ≤ 0.05).

Abbreviations: CBT, core body temperature; D, duration; NS, not significant; T, temperature.

¹Pooled SEM.

²Average CBT for the final hour of exposure.

³Delta (Δ) CBT = mean pullet CBT (last hour of exposure)−mean baseline CBT (15 min prior to exposure).

⁴Delta (Δ) = final foot temperature−initial foot temperature.