Appleby, M. C., Smith, S. F., Hughes, B. O. 1992. Individual perching behaviour of laying hens and its effects in cages. British Poultry Science 33, 227-238.

Caged hens spent more time on softwood perches than on hardwood, metal or plastic perches. Overall, birds spent about 25% of the day time on perches.

Year

1992