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Genetics of tibia b...
Genetics of tibia bone properties of crossbred commercial laying hens in different housing systems
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- Johnsson, Martin (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för husdjursgenetik (HGEN),Department of Animal Breeding and Genetics,Swedish Univ Agr Sci, Dept Anim Breeding & Genet, S-75651 Uppsala, Sweden.
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- Wall, Helena (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för husdjurens utfodring och vård (HUV),Department of Animal Nutrition and Management,Swedish Univ Agr Sci, Dept Anim Nutr & Management, S-75007 Uppsala, Sweden.
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- Lopes Pinto, Fernando A (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för husdjursgenetik (HGEN),Department of Animal Breeding and Genetics,Swedish Univ Agr Sci, Dept Anim Breeding & Genet, S-75651 Uppsala, Sweden.
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- Fleming, Robert H. (författare)
- Univ Edinburgh, Roslin Inst, Edinburgh EH25 259, Scotland.
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- McCormack, Heather A. (författare)
- Univ Edinburgh, Roslin Inst, Edinburgh EH25 259, Scotland.
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- Benavides-Reyes, Cristina (författare)
- Univ Granada, Dept Mineralogia &Petrol, Granada 18002, Spain.
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- Dominguez-Gasca, Nazaret (författare)
- Univ Granada, Dept Mineralogia &Petrol, Granada 18002, Spain.
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- Sanchez-Rodriguez, Estefania (författare)
- Univ Granada, Dept Mineralogia &Petrol, Granada 18002, Spain.
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- Dunn, Ian C. (författare)
- Univ Edinburgh, Roslin Inst, Edinburgh EH25 259, Scotland.
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- Rodriguez-Navarro, Alejandro B. (författare)
- Univ Granada, Dept Mineralogia &Petrol, Granada 18002, Spain.
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- Kindmark, Andreas, 1967- (författare)
- Uppsala universitet,Endokrinologi och mineralmetabolism
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- de Koning, Dirk-Jan (författare)
- Swedish Univ Agr Sci, Dept Anim Breeding & Genet, S-75651 Uppsala, Sweden.;Swedish Univ Agr Sci, Dept Anim Breeding & Genet, Box 7023, S-75007 Uppsala, Sweden.
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(creator_code:org_t)
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- 2022-12-01
- 2023
- Engelska.
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Ingår i: G3. - : Oxford University Press. - 2160-1836. ; 13:2
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- Osteoporosis and bone fractures are a severe problem for the welfare of laying hens, with genetics and environment, such as housing system, each making substantial contributions to bone strength. In this work, we performed genetic analyses of bone strength, bone mineral density, and bone composition, as well as body weight, in 860 commercial crossbred laying hens from 2 different companies, kept in either furnished cages or floor pens. We compared bone traits between housing systems and crossbreds and performed a genome-wide association study of bone properties and body weight. As expected, the 2 housing systems produced a large difference in bone strength, with layers housed in floor pens having stronger bones. These differences were accompanied by differences in bone geometry, mineralization, and chemical composition. Genome scans either combining or independently analyzing the 2 housing systems revealed no genome-wide significant loci for bone breaking strength. We detected 3 loci for body weight that were shared between the housing systems on chromosomes 4, 6, and 27 (either genome-wide significant or suggestive) and these coincide with associations for bone length. In summary, we found substantial differences in bone strength, content, and composition between hens kept in floor pens and furnished cages that could be attributed to greater physical activity in pen housing. We found little evidence for large-effect loci for bone strength in commercial crossbred hens, consistent with a highly polygenic architecture for bone strength in the production environment. The lack of consistent genetic associations between housing systems in combination with the differences in bone phenotypes could be due to gene-by-environment interactions with housing system or a lack of power to detect shared associations for bone strength.
Ämnesord
- LANTBRUKSVETENSKAPER -- Bioteknologi med applikationer på växter och djur -- Genetik och förädling inom lantbruksvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agricultural Biotechnology -- Genetics and Breeding in Agricultural Sciences (hsv//eng)
- LANTBRUKSVETENSKAPER -- Husdjursvetenskap -- Husdjursvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Animal and Dairy Sience -- Animal and Dairy Science. (hsv//eng)
Nyckelord
- bone
- quantitative genetics
- gene-by-environment
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Johnsson, Martin
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Wall, Helena
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Lopes Pinto, Fer ...
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Fleming, Robert ...
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McCormack, Heath ...
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Benavides-Reyes, ...
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Dominguez-Gasca, ...
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Sanchez-Rodrigue ...
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Dunn, Ian C.
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Rodriguez-Navarr ...
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Kindmark, Andrea ...
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de Koning, Dirk- ...
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