Table 2.
Differences in least squares means within each housing system, and pairwise t-tests of significance for these differences.
| Group I control | Group II double straw | Group III Piglet Floor® | Group IV Thorocrete SL® | |
| Day 10 compared to Day 3 | ||||
| Carpus | -0.10n.s. | -0.00n.s | -0.03n.s. | 0.04n.s. |
| Hock | -0.11*** | -0.02n.s. | -0.14*** | -0.06n.s. |
| Abdomen&teats | -0.08*** | -0.12*** | -0.10*** | -0.05* |
| Face | 0.12*** | 0.04n.s. | 0.05n.s | -0.01n.s. |
| Tail | -0.01n.s | 0.01n.s. | -0.02n.s | -0.03n.s. |
| Feet | -0.51*** | -0.22** | -0.38***. | -0.23*** |
| Castration wounds | - | - | - | - |
| Day 17 compared to Day 10 | ||||
| Carpus | -0.48*** | -0.33*** | -0.33*** | -0.31*** |
| Hock | -0.03n.s. | -0.08* | 0.01n.s. | -0.01n.s. |
| Abdomen&teats | -0.01n.s. | -0.03n.s. | -0.00n.s | -0.01n.s. |
| Face | -0.05n.s. | -0.07n.s | -0.05n.s. | -0.06n.s |
| Tail | -0.04n.s | -0.02n.s. | -0.01n.s. | -0.03n.s |
| Feet | -0.09n.s. | -0.11n.s | 0.05n.s. | -0.06n.s. |
| Castration wounds | -0.05n.s. | -0.11* | 0.06n.s. | -0.05n.s. |
ns: not significant, *: p < 0.05, **: p < 0.01, ***: p < 0.001
For true percentages of affected pigs regardless of the score of the lesion, see figures 1 – 6.