Abstract
The influence of stressful stimuli like heating, handling, withholding food and water, crating, on corticosterone levels in plasma of laying hens had been discussed. A threshold of 5–7 ng/ml plasma seems to exist.
Pre-laying also causes an increase in corticosterone. This increase is the same, when eggs are laid with or without a nest. Comparison of corticosterone increase during laying without a nest the 1st and the 40th egg showed no indication for the development of the disturbed pre-laying behaviour into a stereotypie.
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© 1983 ECSC, EEC, EAEC, Brussels-Luxembourg
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Beuving, G. (1983). Corticosteroids in Welfare Research of Laying Hens. In: Smidt, D. (eds) Indicators Relevant to Farm Animal Welfare. Current Topics in Veterinary Medicine and Animal Science, vol 23. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6738-0_6
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DOI: https://doi.org/10.1007/978-94-009-6738-0_6
Publisher Name: Springer, Dordrecht
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