Access to nest boxes is a critical need for laying hens before oviposition. Inadequate provision causes frustration, floor laying, and welfare compromise.
Nest box deprivation causes significant frustration and distress in laying hens. The pre-laying search behaviour is motivationally urgent - hens in battery cages unable to nest show prolonged pacing and vocalisation. Adequate, well-designed nest boxes are a fundamental welfare requirement in all laying systems.