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Feather pecking in ...
Feather pecking in chickens is genetically related to behavioural and developmental traits.
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- Jensen, Per, 1956- (författare)
- Linköpings universitet,Zoologi,Tekniska högskolan
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- Keeling, L (författare)
- Department of Animal Environment and Health Swedish University of Agricultural Science
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- Schütz, K (författare)
- AgResearch, Animal Behaviour and Welfare, New Zealand,dDepartment of Medical Biochemistry and Microbiology Uppsala university
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- Andersson, L. (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Department of Medical Biochemistry and Microbiology Uppsala university
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- Mormède, P (författare)
- Neuroge´ne´tique et Stress Institut Francois Magendie, France
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- Brändström, Helena (författare)
- Uppsala universitet,Institutionen för medicinska vetenskaper,Metabolic Bone Diseases,Department of Medical Sciences Uppsala university
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- Forkman, B (författare)
- Department of Animal Science and Animal Health Royal Veterinary and Agricultural University, Denmark
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- Kerje, Susanne (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi
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- Fredriksson, Robert (författare)
- Uppsala universitet,Institutionen för neurovetenskap,dDepartment of Medical Biochemistry and Microbiology Uppsala university
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- Ohlsson, Claes, 1965 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för internmedicin,Institute of Internal Medicine, Dept of Medicine,Division of Endocrinology, Department of Internal Medicine Sahlgrenska University Hospital, Göteborg
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- Larsson, Sune (författare)
- Uppsala universitet,Institutionen för kirurgiska vetenskaper,Ortopedi
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- Mallmin, Hans (författare)
- Uppsala universitet,Institutionen för kirurgiska vetenskaper,Ortopedi,Department of Surgical Sciences, Section of Orthopedics University Hospital, Uppsala
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- Kindmark, Andreas (författare)
- Uppsala universitet,Institutionen för medicinska vetenskaper,Metabolic Bone Diseases,Department of Medical Sciences Uppsala university
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(creator_code:org_t)
- Elsevier BV, 2005
- 2005
- Engelska.
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Ingår i: Physiology & behavior. - : Elsevier BV. - 0031-9384 .- 1873-507X. ; 86:1-2, s. 52-60
- Relaterad länk:
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http://www.ncbi.nlm....
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Feather pecking (FP) is a detrimental behaviour in chickens, which is performed by only some individuals in a flock. FP was studied in 54 red junglefowl (ancestor of domestic chickens), 36 White Leghorn laying hens, and 762 birds from an F(2)-intercross between these two lines. From all F(2)-birds, growth and feed consumption were measured. Age at sexual maturity and egg production in females, and corticosterone levels in males were also measured. From 333 F(2)-birds of both sexes, and 20 parental birds, body composition with respect to bone mineral content, muscle and fat was obtained by post-mortem examinations using Dual X-Ray Absorptiometry (DXA). In femurs of the same birds, the bone density and structure were analysed using DXA and Peripheral Quantitative Computerized Tomography (pQCT), and a biomechanical analysis of bone strength was performed. Furthermore, plumage condition was determined in all birds as a measure of being exposed to feather pecking. Using 105 DNA-markers in all F(2)-birds, a genome-wide scan for Quantitative Trait Loci (QTL), associated with the behaviour in the F(2)-generation was performed. FP was at least as frequent in the red junglefowl as in the White Leghorn strain studied here, and significantly more common among females both in the parental strains and in the F(2)-generation. In the F(2)-birds, FP was phenotypically linked to early sexual maturation, fast growth, weak bones, and, in males, also high fat accumulation, indicating that feather peckers have a different resource allocation pattern. Behaviourally, F(2) feather peckers were more active in an open field test, in a novel food/novel object test, and in a restraint test, indicating that feather pecking might be genetically linked to a proactive coping strategy. Only one suggestive QTL with a low explanatory value was found on chromosome 3, showing that many genes, each with a small effect, are probably involved in the causation of feather pecking. There were significant effects of sire and dam on the risk of being a victim of feather pecking, and victims grew faster pre- and post-hatching, had lower corticosterone levels and were less active in a restraint test. Hence, a wide array of behavioural and developmental traits were genetically linked to FP.
Nyckelord
- Aggression
- physiology
- Animals
- Behavior
- Animal
- physiology
- Body Composition
- genetics
- Bone Density
- Breeding
- Chickens
- genetics
- physiology
- Corticosterone
- blood
- Feathers
- Female
- Genotype
- Housing
- Animal
- Male
- Phenotype
- Quantitative Trait Loci
- genetics
- Social Behavior
- Species Specificity
- Stress
- genetics
- veterinary
- Chicken
- MEDICINE
- NATURAL SCIENCES
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Jensen, Per, 195 ...
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Keeling, L
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Schütz, K
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Andersson, L.
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Mormède, P
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Brändström, Hele ...
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Forkman, B
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Kerje, Susanne
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Fredriksson, Rob ...
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Ohlsson, Claes, ...
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Larsson, Sune
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Mallmin, Hans
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Kindmark, Andrea ...
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Physiology & beh ...
- Av lärosätet
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Göteborgs universitet
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Uppsala universitet
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Linköpings universitet