Table 3.
Final linear regression model for feather damage prevalence in non-cage laying hen flocks
| Variable | Coefficient | SE | P-value |
|---|---|---|---|
| Intercept | −18.28 | 12.528 | |
| Flock age (centered) | 0.91 | 0.293 | 0.0017 |
| Floor type | < 0.001 | ||
| All litter | Referent | ||
| Combination | 6.50 | 10.789 | |
| All wire/slatted | 37.61 | 13.065 | |
| Manure belt frequency | 0.0151 | ||
| >3x per week | Referent | ||
| 1-2x per week | 12.95 | 9.718 | |
| End of flock only | 20.13 | 10.702 | |
| Enrichment | 0.0586 | ||
| Yes | 19.06 | 8.036 | |
| No | Referent | ||
| Matching of littera | 0.2058 | ||
| Yes | Referent | ||
| No | 14.09 | 9.543 | |
| Dawn/Dusk period | 0.1086 | ||
| Yes | Referent | ||
| No | 15.00 | 9.000 |
α = 0.05, adjusted R2 = 0.6407, P < 0.001, N = 39
aMatching of litter conditions in both rearing and laying periods of flock’s life