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Crowding conditions per group in available cm2 per chick. Age is depicted in weeks, and cages were enlarged at two time-points. Stocking densities were based on industry-numbers (taken as guiding value for conventional crowding) and a factor of three smaller or bigger to design the over- and undercrowding situation respectively.
| Crowding Condition | |||
|---|---|---|---|
| Age | Undercrowding | Conventional Crowding | Overcrowding |
| 0–3 | 500 cm2 | 167 cm2 | 56 cm2 |
| 4–6 | 1000 cm2 | 333 cm2 | 111 cm2 |
| 7–10 | 1429 cm2 | 500 cm2 | 167 cm2 |
