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Intra-observer reliability of feather damage (FD) scoring in laying hens based on the AssureWel scoring system (0–2 scale) following initial testing. Different body areas were assessed, and one overall score was given based on the overall impression of the hen. Reliability was assessed as weighted kappa (WK).
| AssureWel | |||
|---|---|---|---|
| Body Area | N | Weighted Kappa (WK) | Standard Error |
| Neck | 54 | 0.67 | 0.162 |
| Back | 54 | 0.88 | 0.041 |
| Wings | 54 | 0.36 | 0.199 |
| Tail | 54 | 0.61 | 0.094 |
| Overall | 54 | 0.85 | 0.059 |
