The effect of perches installed in cages on laying hens

The public wants assurances that animals used for food are raised humanely. Conventional cages for egg laying hens do not meet hen's behavioural needs, but cages have potential advantages such as improved liveability and respiratory health because of less aerial ammonia and dust as compared to non-cage systems. Providing amenities to cages might be a compromise that allows hens to reap some of the advantages of conventional cages and also better...