Peer Review #3 of "Effects of outdoor ranging on external and internal health parameters for hens from different rearing enrichments (v0.1)"

Abstract

In Australia, free-range layer pullets are typically reared indoors, but adult layers go outdoors, this mismatch might reduce adaptation in laying environments. Enrichments during rearing may optimise pullet development and subsequent welfare as adult freerange hens. In the outdoor environment, hens may have greater opportunities for exercise and natural behaviours which might contribute to improved health and welfare. But the outdoor environment may also result in potential exposure to parasites and pathogens…