Table 5.
Performance summary of Lohmann LSL white hens in conventional cage, cage-free aviary, and enriched colony cage systems over 15 production periods.
| Housing System | ||||
|---|---|---|---|---|
| Production Parameter | Conventional | Aviary | Enriched Colony | Reference1 |
| No. of Hens House−1 (wk 20) | 193,424 | 49,830 | 46,795 | - |
| No. of Hens House−1 (wk 78) | 184,322 | 44,082 | 44,404 | - |
| Cumulative Mortality (%) | 4.7 | 11.5 | 5.1 | 4 to 6 |
| Avg. hen-day Egg Prod. (%) | 87.3 | 86.6 | 90.5 | 87.0 |
| Eggs per Hen Housed | 352 | 340 | 363 | 349 |
| Egg Weight (g) | 58.5 | 58.4 | 59.1 | 66.9 |
| Feed Use (g hen−1 day−1) | 105.0 | 107.7 | 107.3 | 105 to 115 |
| Water use (g hen−1 day−1) | 221.0 | 182.9 | 195.0 | - |
| Water/Feed (kg/kg) | 2.06 | 1.64 | 1.73 | - |
| Feed Conversion (kg/doz. egg) | 1.44 | 1.49 | 1.42 | - |
| Feed Conversion (kg feed/kg egg) | 2.02 | 2.12 | 1.99 | 2.0 to 2.1 |
| Body weight at wk 78 (kg) | 1.56 | 1.53 | 1.55 | 1.72 to 1.86 |
1
Breeder company reference for Lohmann LSL white hen (20 to 78 wk).