Adrenal reactivity in lines of domestic fowl selected on feather pecking behavior

Domestic chicken lines of the White Leghorn layer type differing in their level of feather pecking have been developed by divergent selection specifically on feather pecking behavior. This paper describes an investigation of basal level, reactivity to manual restraint and maximal adrenal response to 1-24 ACTH in breeder birds of the sixth generation of selection […]

Fear and coping styles of outdoor-preferring, moderate-outdoor and indoor-preferring free-range laying hens

Free-range systems are increasing in popularity as outdoor access is perceived to improve hen welfare, but radio-frequency identification tracking of individuals shows not all hens access the range daily with some hens never going outside. The individual variation in range use may be correlated with individual differences in fear and coping styles. In this study, […]