Table 4.
Effects of social status and day of observation on time spent (proportion of observations) and number of sows (proportion of sows) in contact with enrichment, less than 1 m or greater than 1 m from enrichment.
| Behaviour * | Social Status ** | p-Value *** | |||
|---|---|---|---|---|---|
| Dom | Sub | SEM | SS | Day | |
| Enrichment contact | |||||
| Time (prop. of obs.) | 0.279 | 0.314 | 0.024 | 0.172 | 0.001 |
| No. of sows (prop.) | 0.386 | 0.397 | 0.009 | 0.939 | 0.001 |
| Less than 1 m | |||||
| Time (prop. of obs.) | 0.137 a | 0.203 b | 0.015 | 0.001 | 0.001 |
| No. of sows (prop.) | 0.371 | 0.371 | 0.009 | 0.992 | 0.001 |
| Greater than 1 m | |||||
| Time (prop. of obs.) | 0.854 a | 0.905 b | 0.016 | 0.001 | <0.001 |
| No. of sows (prop.) | 0.563 a | 0.591 b | 0.013 | 0.042 | 0.001 |
ab LS Means with a different superscript within the same row are significantly different (p < 0.05). * Sows were observed during an 8 h period (08:00–16:00 h) on four days (1, 8, 10 and 12) using time lapse photos at 10 min intervals. ** Social Status LS Means: Dom = Dominant; Sub = Subordinate. *** SS = Social Status, Day = Day of observation (1, 8, 10 and 12).