References
- Appleby, M. C. 1995. Perch length in cages for medium hybrid laying hens. Br. Poult. Sci. 36:23-31. https://doi.org/10.1080/00071669508417749
- Appleby, M. C. 2004. What causes crowding? Effects of space, facilities and group size on behavior, with particular reference to furnished cages for hens. Anim. Welf. 13:313-320.
- Bayne, K. A. L., J. K. Hurst and S. L. Dexter. 1991. Evaluation of the preference to and behavioral effects of an enriched environment on male rhesus monkeys. Lab. Anim. Sci. 42:38-45.
- Dawkins, M. S. and S. Hardie. 1989. Space needs of laying hens. Br. Poult. Sci. 30:413-416. https://doi.org/10.1080/00071668908417163
- Dawkins, M. S., C. A. Donnelly and T. A. Jones. 2004. Chicken welfare is influenced more by housing conditions than by stocking density. Nature 427:342-344. https://doi.org/10.1038/nature02226
- Foster, R. G. and B. K. Follett. 1985. The involvement of a rhodopsin-like photopigment in the photoperiodic response of the Japanese quail. J. Comp. Physiol. A. 157:519-528. https://doi.org/10.1007/BF00615153
- Gentle, M. J. 1985. Sensory involvement in the control of food intake in poultry. Proc. Nutr. Soc. 44:313-321. https://doi.org/10.1079/PNS19850051
- Guilford, T. 1990. The secrets of aposematism: unlearned responses to specific colors and patterns. Trends Ecol. Evol. 5:323-323. https://doi.org/10.1016/0169-5347(90)90177-F
- Hughes, B. O. and H. A. Elson. 1977. The use of perches by broilers in floor pens. Br. Poult. Sci. 18:715-722. https://doi.org/10.1080/00071667708416426
- Hughes, B. O. and I. J. H. Duncan. 1972. The influence of strain and environmental factors upon feather pecking and cannibalism in fowls. Br. Poult. Sci. 13:525-547. https://doi.org/10.1080/00071667208415981
- Jones, R. B. and N. L. Carmichael. 1998. Pecking at string by individually caged, adult laying hens: colour preferences and their stability. Appl. Anim. Behav. Sci. 60:11-23. https://doi.org/10.1016/S0168-1591(98)00151-8
- King-Smith, P. E. 1971. Special senses. In: Physiology and Biochemistry of the Domestic Fowl (Ed. D. J. Bell and B. M. Freeman). pp. 1039-1080. Academic Press, London, UK.
- Lewis, P. D. and T. R. Morris. 2000. Poultry and colored light. World's Poult. Sci. J. 56:189-207. https://doi.org/10.1079/WPS20000015
- Manser, C. E. 1996. Effects of lighting on the welfare of domestic poultry. Anim. Welf. 5:341-360.
- Nelson, L. 2004. Feathers fly over welfare of hemmed in hens. Nature 427:275.
- Newberry, R. C., I. Estevez and L. J. Keeling. 2001. Group size and perching behaviour in young domestic fowl. Appl. Anim. Behav. Sci. 73:117-129. https://doi.org/10.1016/S0168-1591(01)00135-6
- Newberry, R. C. 1995. Environmental enrichment: increasing the biological relevance of captive environments. Appl. Anim. Behav. Sci. 44:229-243. https://doi.org/10.1016/0168-1591(95)00616-Z
- Olsson, I. A. and L. J. Keeling. 2000. Night-time roosting in laying hens and the effect of thwarting access to perches. Appl. Anim. Behav. Sci. 68:243-256. https://doi.org/10.1016/S0168-1591(00)00097-6
- Olsson, I. A. and L. J. Keeling. 2002. The push-door for measuring motivation in hens: laying hens are motivated to perch at night. Anim. Welf. 11:11-19.
- Pickel, T., B. Scholz and L. Schrader. 2010. Perch material and diameter affects particular perching behaviors in laying hens. Appl. Anim. Behav. Sci. 127:37-42. https://doi.org/10.1016/j.applanim.2010.08.005
- Prescott, N. B. and C. M. Wathes. 1999. Spectral sensitivity of domestic fowl Gallusg domestic. Br. Poult. Sci. 40:332-339. https://doi.org/10.1080/00071669987412
- Prescott, N. B. and C. M. Wathes. 2002. Light and how birds perceive their environment. Br. Poult. Sci. (Suppl.) 43:57-58.
- Rosemary, P. R. and I. Estevez. 2001. Effects of density on perching behavior of broiler chickens. Appl. Anim. Behav. Sci. 71:127-140. https://doi.org/10.1016/S0168-1591(00)00174-X
- Schuler, W. and T. J. Roper. 1992. Responses to warning coloration in avian predators. Adv. Study Behav. 21:111-146. https://doi.org/10.1016/S0065-3454(08)60143-6
- Struelens, E., F. A. M. Tuyttens, L. Duchateau, T. Leroy, M. Cox, E. Vranken, J. Buyse, J. Zoons, D. Berckmans, F. Odberg and B. Sonck. 2008. Perching behavior and perch height preference of laying hens in furnished cages varying in height, Br. Poult. Sci. 49:381-389. https://doi.org/10.1080/00071660802158332
- Tauson, R. 1984. Effects of a perch in conventional cages for laying hens. Acta Agric. Scand. 34:193-209. https://doi.org/10.1080/00015128409435389
- Taylor, P. E., G. B. Scott and S. P. Rose. 2003. Ability of laying hens to negotiate jumps between horizontal perches: effects of light intensity and perch color. Br. Poult. Sci. 44:S32-S33. https://doi.org/10.1080/00071660301927
- Taylor, P. E., G. B. Scott and S. P. Rose. 2003. The ability of domestic hens to jump between horizontal perches: effects of light intensity and perch color. Appl. Anim. Behav. Sci. 83:99-108. https://doi.org/10.1016/S0168-1591(03)00127-8
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