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The effects of selection on low mortality and brooding by a mother hen on open-field response, feather pecking and cannibalism in laying hens

Published online by Cambridge University Press:  01 January 2023

TB Rodenburg ,
KA Uitdehaag ,
ED Ellen  and
J Komen
TB Rodenburg*
Affiliation:
Animal Breeding and Genomics Centre, Wageningen University, PO Box 338, 6700 AH Wageningen, The Netherlands
KA Uitdehaag
Affiliation:
Animal Breeding and Genomics Centre, Wageningen University, PO Box 338, 6700 AH Wageningen, The Netherlands Vencomatic BV, PO Box 160, 5520 AD Eersel, The Netherlands
ED Ellen
Affiliation:
Animal Breeding and Genomics Centre, Wageningen University, PO Box 338, 6700 AH Wageningen, The Netherlands
J Komen
Affiliation:
Animal Breeding and Genomics Centre, Wageningen University, PO Box 338, 6700 AH Wageningen, The Netherlands
*
* Contact for correspondence and requests for reprints: [email protected]
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Abstract

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The aim of the present study was to investigate the effects of selection on low mortality in combination with brooding by a mother hen on open-field response at 5-6 weeks of age and on plumage and body condition at 42 weeks of age. Birds in the experiment were either selected for low mortality in group housing (low mortality line) or randomly selected (control line) for two generations. These lines originated from the same population. Twenty groups of 10 female birds from each line were used. Within each line, ten groups were brooded by a foster mother and ten groups were non-brooded. At 5-6 weeks of age, the chicks were tested in an open-field test for five minutes. At 42 weeks of age, plumage condition and incidence of comb lesions and toe wounds of all birds was recorded. It was found that both brooded chicks and chicks from the low mortality line were more active in the open-field test at 5-6 weeks of age, indicating that they were less fearful or had a stronger exploratory motivation. No interactions were found between selection on low mortality and brooding. Birds from the low mortality line also had a lower incidence of comb and toe wounds compared with the control line at 42 weeks of age. No effect of brooding on plumage condition or incidence of wounds was found. This study indicates that selection on low mortality is a promising way forward to reduce maladaptive behaviour in laying hens, especially if such an approach is combined with improved rearing conditions.

Keywords

animal welfarebroodingcannibalismfeather peckinggenetic selectionlaying hens
Type
Research Article
Information
Animal Welfare , Volume 18 , Issue 4: Proceedings of the 4th International Workshop on the Assessment of Animal Welfare at Farm and Group Level , November 2009 , pp. 427 - 432
Copyright
© 2009 Universities Federation for Animal Welfare

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