Table 2.
Effects of enrichment treatment 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 * | Treatment | p Value | ||||
|---|---|---|---|---|---|---|
| Constant | Rotate | Stimulus | SEM | Treatment | Day ** | |
| Contacting enrichment: | ||||||
| Time (prop. of obs.) | 0.569 | 0.598 | 0.612 | 0.095 | 0.966 | 0.329 |
| No. of sows (prop.) | 0.112 a | 0.200 b | 0.182 b | 0.019 | 0.041 | 0.001 |
| Less than 1M: | ||||||
| Time (prop. of obs.) | 0.527 | 0.642 | 0.651 | 0.062 | 0.238 | 0.267 |
| No. of sows (prop.) | 0.123 | 0.168 | 0.159 | 0.028 | 0.371 | 0.388 |
| Greater than 1M: | ||||||
| Time (prop. of obs.) | 0.999 | 0.988 | 0.988 | 0.001 | 0.358 | 0.299 |
| No. of sows (prop.) | 0.667 a | 0.541 b | 0.532 b | 0.020 | 0.001 | 0.001 |
ab LSMeans with different a 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. ** Day = Day of observation (days 1, 8, 10 and 12).