Table 1.
Two-flock summary of 20 to 78 wk production performance of Lohmann LSL white hens in the conventional cage house (CC), aviary house (AV), and enriched colony house (EC).
| Production parameter | Housing type | Reference2 | ||
|---|---|---|---|---|
| Conventional cage (CC)1 | Aviary (AV)1 | Enriched colony (EC)1 | ||
| No. of hens/house (wk 20) | 196,120 | 49,754 | 46,762 | — |
| (193,424/198,816) | (49,830/49,677) | (46,795/46,729) | ||
| Cumulative mortality (%) | 4.4 | 11.5 | 4.8 | 4 to 6 |
| (4.7/4.2) | (11.5/11.5) | (5.1/4.4) | ||
| Hen-day egg production (%) | 89.4 | 87.3 | 92.3 | 87.0 |
| (87.3/91.4) | (86.6/87.9) | (90.5/94.1) | ||
| Eggs per hen housed | 362 | 342 | 373 | 360 |
| (352/369) | (340/344) | (363/381) | ||
| Egg weight (g) | 58.8 | 58.5 | 59.1 | 66.9 |
| (58.5/59.1) | (58.4/58.6) | (59.1/59.0) | ||
| Feed use (g/hen/d) | 106 | 108 | 107 | 105 to 115 |
| (105/107) | (108/108) | (107/106) | ||
| Water use (g/hen/d) | 220 | 184 | 192 | — |
| (221/219) | (183/185) | (193/191) | ||
| Feed conversion ratio (feed:egg) | 1.99 | 2.08 | 1.97 | 2.0 to 2.1 |
| (2.02/1.96) | (2.12/2.04) | (1.99/1.94) | ||
| Average BW (kg) | 1.60 | 1.56 | 1.55 | 1.72 to 1.86 |
| (1.55/1.64) | (1.56/1.56) | (1.52/1.57) | ||
1
Values are the mean of 2 flocks, with values in paranthese representing flock1 and flock 2 (fock1/flock2), respectively.
2
Breeder company reference for Lohmann LSL white hen (20 to 78 wk) (Layer Management Guide, http://www.lskpoultry.fi/materiaalit/lsl_managementguide.pdf, accessed on December 5, 2013)