Table 4.

Arithmetic means (±SD) of the proportions of pigs performing each posture, frequencies of drinking bouts and agonistic acts, and latency to lie down in lairage according to the loading density during transport

	Loading density1
Behavior	D200	D235	D270	P
Standing, %	27.0 ± 30.0a	25.4 ± 23.7a	15.9 ± 20.6b	0.01
Lying, %	70.9 ± 30.4b	70.8 ± 24.3b	82.8 ± 21.5a	0.02
Sitting, %	1.9 ± 3.9	3.8 ± 6.3	1.5 ± 3.6	0.24
Drinking bouts2	22.0 ± 9.0a	13.6 ± 6.5b	11.9 ± 4.5b	<0.01
Agonistic acts2	1.5 ± 2.1	0.4 ± 0.5	0.1 ± 0.3	0.64
Latency to lie down, min	16.1 ± 2.0	13.6 ± 4.5	12.1 ± 5.2	0.36

^a,bWithin a row, means lacking a common superscript letter differ (P < 0.05).

¹D200: 200 kg/m²; D235: 235 kg/m²; D270: 270 kg/m².

²Per group of 10 pigs.