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Bone quality and composition are influenced by egg production, layer line, and oestradiol-17ß in laying hens
dc.contributor.author | Eusemann, Beryl Katharina | |
dc.contributor.author | Sánchez Rodríguez, Estefanía | |
dc.contributor.author | Benavides Reyes, Cristina | |
dc.contributor.author | Domínguez Gasca, Nazaret | |
dc.contributor.author | Rodríguez Navarro, Alejandro | |
dc.date.accessioned | 2022-05-03T06:35:42Z | |
dc.date.available | 2022-05-03T06:35:42Z | |
dc.date.issued | 2022-04-14 | |
dc.identifier.citation | Beryl Katharina Eusemann... [et al.] (2022): Bone quality and composition are influenced by egg production, layer line, and oestradiol-17ß in laying hens, Avian Pathology, DOI: [10.1080/03079457.2022.2050671] | es_ES |
dc.identifier.uri | http://hdl.handle.net/10481/74659 | |
dc.description | Part of this work was supported by the Spanish Ministerio de Ciencia e Innovacion [grant number CGL2015-64683-P]. | es_ES |
dc.description.abstract | Keel bone fractures are a serious animal welfare problem in laying hens. The aim of the current study was to assess the influence of egg production, oestradiol-17ß, and selection for high laying performance on bone quality. Hens of two layer lines differing in laying performance (WLA: 320 eggs per year, G11: 200 eggs per year) were allocated to four treatment groups. Group S received a deslorelin acetate implant that suppressed egg production. Group E received an implant with the sexual steroid oestradiol-17ß. Group SE received both implants and group C did not receive any implant. In the 63rd week of age, composition and characteristics of the tibiotarsi were assessed using histological analysis, three-point bending test, thermogravimetric analysis, infrared spectroscopy, and two-dimensional X-ray diffraction, respectively. Non-egg-laying hens showed a higher total bone area and a higher relative amount of cortical bone compared to egg-laying hens. Hens of layer line G11 showed a higher relative amount of medullary bone and a higher degree of mineralization of the cortical bone compared to hens of layer line WLA. These differences in bone composition may explain different susceptibility to keel bone fractures in non-egg-laying compared to egg-laying hens as well as in hens of layer lines differing in laying performance. The effect of exogenous oestradiol-17ß on bone parameters varied between the layer lines indicating a genetic influence on bone physiology and the way it can be modulated by hormone substitution. | es_ES |
dc.description.sponsorship | Instituto de Salud Carlos III Spanish Government CGL2015-64683-P | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Taylor & Francis | es_ES |
dc.rights | Atribución 3.0 España | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | Laying hen | es_ES |
dc.subject | Laying performance | es_ES |
dc.subject | Keel bone | es_ES |
dc.subject | Fracture | es_ES |
dc.subject | Deviation | es_ES |
dc.subject | Breaking strength | es_ES |
dc.subject | Osteoporosis | es_ES |
dc.subject | Bone quality | es_ES |
dc.title | Bone quality and composition are influenced by egg production, layer line, and oestradiol-17ß in laying hens | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.identifier.doi | 10.1080/03079457.2022.2050671 | |
dc.type.hasVersion | info:eu-repo/semantics/publishedVersion | es_ES |