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Animal Science Database

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Abstract

When thwarted in a behaviour, laying hens show an increase in stereotyped pacing, displacement preening and a specific vocalization known as the gakel-call. How these behaviours, which might serve as indicators of welfare, are influenced by social factors is not yet known. In this study, the effect ...

Author(s)
Zimmerman, P. H.; Lundberg, A.; Keeling, L. J.; Koene, P.
Publisher
Universities Federation for Animal Welfare (UFAW), Wheathampstead, UK
Citation
Animal Welfare, 2003, 12, 3, pp 315-326
Abstract

Despite attempts to relate vocalization of animals to their welfare status, very little is known in farm animals and in precocious birds. We analysed vocal expressions of 50 chicks during step by step social isolation. 91.20% of the recorded vocalisations (n=21 583 calls) consisted of four main...

Author(s)
Marx, G.; Leppelt, J.; Ellendorff, F.
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Applied Animal Behaviour Science, 2002, 75, 1, pp 61-74