Figure 2.

Diagram of treatments applied to flight feathers of laying hens (n = 120) at the end of week 0, following baseline measurement acquisition. Treatment groups included the control group in which all flight feathers were left intact (4 hens/pen), the half clip group in which the primary flight feathers were trimmed (3 hens/pen) and the full clip group in which all of the primary and secondary flight feathers were trimmed (3 hens/pen).