Table 1.
Mean (±SEM) duration of range use, number of visits, number of days on the range during early life (18–21 weeks) and whole life (18–72 weeks) of the stayers, roamers and rangers.
| Flock | Groups | Number of Hens with Full Dataset Available | Duration of Range Use (Min/Hen/Day) | Number of Range Visits (Visits/Hen/Day) | Mean Days on the Range/Hen | Percentage Days on the Range/Hen | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| 18–21 Weeks | 18–74 Weeks | 18–21 Weeks | 18–74 Weeks | 18–21 Weeks | 18–74 Weeks | 18–21 Weeks | 18–74 Weeks | |||
| Flock A | Stayers | 298 | 4.19 ± 0.5 | 33.7 ± 0.9 | 0.57 ± 0.09 | 2.69 ± 0.06 | 0.725 ± 0.1 | 117.3 ± 3.4 | 4.26 ± 0.3 | 43.5 ± 1.3 |
| Roamers | 404 | 39.9 ± 1.5 | 48.2 ± 1.0 | 1.82 ± 0.05 | 2.64 ± 0.03 | 6.883 ± 0.1 | 155.4 ± 3.1 | 40.5 ± 0.7 | 57.6 ± 1.1 | |
| Rangers | 409 | 83.6 ± 1.6 | 60.0 ± 0.9 | 2.38 ± 0.03 | 2.43 ± 0.02 | 13.20 ± 0.1 | 181.8 ± 2.9 | 77.7 ± 0.6 | 67.3 ± 1.1 | |
| Flock B | Stayers | 362 | 0.77 ± 0.2 | 23.1 ± 0.9 | 1.19 ± 0.05 | 1.09 ± 0.05 | 2.197 ± 0.2 | 207.0 ± 2.9 | 8.45 ± 0.7 | 73.7 ± 1.0 |
| Roamers | 380 | 4.91 ± 0.4 | 24.4 ± 0.7 | 1.43 ± 0.04 | 1.32 ± 0.04 | 3.501 ± 0.1 | 204.2 ± 3.1 | 13.5 ± 0.5 | 72.7 ± 1.1 | |
| Rangers | 401 | 36.5 ± 1.2 | 36.3 ± 0.8 | 1.82 ± 0.04 | 1.79 ± 0.04 | 11.95 ± 0.2 | 211.7 ± 2.8 | 46.0 ± 0.9 | 75.4 ± 1.0 | |
| Flock C | Stayers | 296 | 1.15 ± 0.4 | 35.3 ± 1.5 | 0.27 ± 0.04 | 3.37 ± 0.10 | 2.680 ± 0.2 | 109.6 ± 3.4 | 11.2 ± 1.0 | 73.3 ± 1.0 |
| Roamers | 375 | 7.29 ± 0.4 | 33.6 ± 1.1 | 1.72 ± 0.05 | 3.53 ± 0.08 | 5.520 ± 0.1 | 166.3 ± 3.9 | 23.0 ± 0.6 | 50.4 ± 1.2 | |
| Rangers | 444 | 51.6 ± 1.9 | 45.0 ± 1.9 | 3.26 ± 0.06 | 4.10 ± 0.07 | 16.40 ± 0.1 | 217.1 ± 3.1 | 96.8 ± 0.4 | 65.8 ± 0.9 | |
| Flock D | Stayers | 253 | 1.58 ± 0.1 | 35.3 ± 1.3 | 1.89 ± 0.22 | 4.52 ± 0.15 | 3.626 ± 0.2 | 110.9 ± 3.3 | 12.9 ± 0.6 | 37.8 ± 1.1 |
| Roamers | 395 | 20.7 ± 0.5 | 48.3 ± 1.2 | 4.03 ± 0.12 | 4.70 ± 0.09 | 13.26 ± 0.2 | 193.8 ± 3.2 | 47.3 ± 0.8 | 66.1 ± 1.1 | |
| Rangers | 386 | 66.5 ± 1.2 | 55.4 ± 1.2 | 5.38 ± 0.10 | 5.49 ± 0.10 | 23.32 ± 0.2 | 226.2 ± 2.8 | 83.3 ± 0.6 | 77.2 ± 1.0 | |
| Flock E | Stayers | 294 | 1.92 ± 0.3 | 24.3 ± 1.1 | 1.00 ± 0.09 | 2.95 ± 0.09 | 3.132 ± 0.2 | 81.00 ± 2.6 | 4.9 ± 0.7 | 34.2 ± 1.1 |
| Roamers | 227 | 15.5 ± 1.4 | 25.7 ± 1.5 | 2.57 ± 0.12 | 4.00 ± 0.12 | 8.554 ± 0.2 | 89.88 ± 3.1 | 40.7 ± 1.1 | 37.9 ± 1.3 | |
| Rangers | 366 | 44.4 ± 1.4 | 37.6 ± 1.0 | 4.25 ± 0.10 | 4.63 ± 0.08 | 18.24 ± 0.3 | 119.7 ± 2.2 | 86.9 ± 1.6 | 50.5 ± 0.9 | |
| Pooled | Stayers | 1503 | 2.09 ± 0.2 | 30.3 ± 1.1 | 0.98 ± 0.10 | 2.92 ± 0.08 | 2.47 ± 0.2 | 124.8 ± 3.1 | 4.72 ± 0.3 | 52.5 ± 1.1 |
| Roamers | 1781 | 18.3 ± 0.5 | 36.0 ± 1.1 | 2.31 ± 0.08 | 3.24 ± 0.09 | 7.53 ± 0.1 | 161.6 ± 3.3 | 40.6 ± 0.7 | 56.9 ± 1.2 | |
| Rangers | 2006 | 55.6 ± 0.8 | 46.9 ± 1.2 | 3.42 ± 0.07 | 3.69 ± 0.06 | 16.6 ± 0.2 | 190.8 ± 2.8 | 77.8 ± 0.6 | 67.2 ± 1.0 | |