Table 3.
Means ± SEM of the percentages of time spent on behaviors in pigs housed in barren and enriched housing conditions 2 days before the switch (at 47 days of age).
| Behavior (% of time) | Barren | Enriched | p-value |
|---|---|---|---|
| Inactive | 58.2 ± 2.3 | 44.7 ± 2.0 | *** |
| Social behavior | 0.8 ± 0.1 | 0.7 ± 0.1 | ns |
| Exploringa | 6.1 ± 0.6 | 8.8 ± 0.6 | ** |
| Pen-directed exploring | 6.1 ± 0.6 | 1.4 ± 0.1 | *** |
| Chewingb | 7.6 ± 0.7 | 23.8 ± 1.3 | *** |
| Pen-directed chewing | 7.6 ± 0.7 | 0.8 ± 0.1 | *** |
| Manipulation | 2.6 ± 0.3 | 0.6 ± 0.2 | *** |
| Play | 0.9 ± 0.2 | 1.4 ± 0.2 | ns |
| Aggression | 0.7 ± 0.1 | 0.5 ± 0.1 | ns |
| Mounting | 1.0 ± 0.1 | 0.5 ± 0.1 | * |
a
Exploration includes exploring the pen and exploring the substrates.
b
Chewing includes pen- and substrates-directed chewing.
Significances of differences are indicated: ***p < 0.001, **p < 0.01, *p < 0.05; ns indicates non-significance.