Table 3.

Behavior parameters (% of time) for temperature (T) and RH combinations (−10°C uncontrolled RH (−10), 21°C 30%RH (21/30), 21°C 80%RH (21/80), 30°C 30%RH (30/30), and 30°C 80%RH (30/80), duration of exposure (D; 4, 8, and 12 h), and feather cover (FC; well [WF] and poorly-feathered [PF]) of white-feathered end-of-cycle hens.

Behavior	T/RH combinations					P-value	D			P-value	FC		P-value	SEM
	−10	21/30	21/80	30/30	30/80		4 h	8 h	12 h		WF	PF
Motionless	83.8ab	90.9a	90.7a	75.8bc	70.2c	<0.01	81.6	82.5	82.3	0.84	79.5b	85.0a	0.01	1.44
Active	0.3b	0.4b	0.4b	1.0a	1.3a	<0.01	0.8	0.5	0.8	0.24	0.8	0.7	0.23	0.08
Rustle	1.9ab	0.8b	1.0b	2.2a	1.9a	<0.01	1.8a	1.4ab	1.3b	0.02	1.6	1.5	0.43	0.11
Survey	3.1	2.8	3.0	3.3	2.5	0.70	3.8a	1.8b	3.1ab	<0.01	3.0	2.8	0.74	0.21
Head shake	2.1a	0.9b	1.0b	1.1b	1.3ab	0.01	1.3	1.0	1.3	0.22	1.2	1.2	0.35	0.09
Pant	0.1b	1.2b	0.2b	11.2a	17.7a	<0.01	6.5	6.4	6.9	0.97	8.7a	4.3b	<0.01	1.19
Shiver	2.5a	0b	0b	<0.1b	0b	<0.01	0.7	0.1	0.2	0.08	0.4	0.3	0.59	0.15
Burrow	<0.1	0	0	0	<0.1	0.11	<0.1	<0.1	0	0.28	<0.1	<0.1	0.53	0.01
Preen	0c	0.4bc	0.6ab	0.9a	1.0a	<0.01	0.6	0.6	0.8	0.24	0.6	0.7	0.24	0.06
Gulp	0b	0.1ab	0.2a	0.1ab	0.1ab	0.02	0.1	0.2	<0.1	0.06	0.2a	0.1b	0.03	0.02
Pteroerection	0.3a	<0.1b	<0.1b	<0.1b	<0.1b	<0.01	0.1	0.1	0.1	0.58	<0.1	0.1	0.13	0.02
Other1	6.1a	2.6b	2.8b	4.4ab	4.0ab	<0.01	2.8b	5.4a	3.2ab	<0.01	4.2	3.3	0.51	0.40
T/RH × FC interaction – Motionless (P = 0.03)
	−10			21/30			21/80			30/30			30/80
WF	85.4a			91.4a			90.1a			67.8bc			64.0c
PF	80.9ab			90.3a			91.3a			83.8a			76.4abc
T/RH × FC interaction – Pant (P = 0.03)
	−10			21/30			21/80			30/30			30/80
WF	<0.1c			1.2c			0.2c			16.3ab			23.8a
PF	0.1c			1.3c			0.2c			6.1bc			11.6b

^a,b,cMeans within a main effect or an interaction with different superscripts are significantly different (P ≤ 0.05).

¹Other defined as low incidence behaviors such as: head movement, wing shake, tail movement, stretch, twitch, scratch, object peck, aggressive peck, and no observations.