Dual energy X-ray absorptiometry is a valid tool for assessing in vivo body composition of broilers
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1071/AN17637 http://hdl.handle.net/11449/179988 |
Resumo: | The use of non-invasive techniques to estimate body composition in animals in vivo conforms to the desire to improve the welfare of animals during research and also has the potential to advance scientific research. The purpose of the present study was to determine a predictive equation of the dual energy X-ray absorptiometry (DXA) method for broilers by comparing the measurement of body composition using DXA with that by chemical analysis. In total, 720 day-old Cobb500 broilers were distributed into a split-plot arrangement 3 (crude protein concentrations of diets) × 2 (genders) × 2 (methods of chemical body evaluation), with six replications of 20 birds each. To promote the modification of the body composition of broilers, diets varied in the crude protein concentration, which was 70%, 100% and 130% of the required. Two hundred and sixteen birds in different ages were evaluated by its bodyweight, lean, fat and ash contents. The data were submitted to ANOVA and it was demonstrated that the dietary crude protein levels applied allowed a greater variation of the body composition of the birds. Also, the results indicated that the DXA method did not predict fat mass, lean mass or bone mineral content as well as did chemical composition analysis, resulting in the need to develop regression equations for improving the in vivo prediction of these chemical components. The regression equations developed here enable the feather-free body composition of individual broilers to be directly estimated throughout growth using the DXA non-invasive technique. |
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Repositório Institucional da UNESP |
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Dual energy X-ray absorptiometry is a valid tool for assessing in vivo body composition of broilerscarcass depositionfat depositionThe use of non-invasive techniques to estimate body composition in animals in vivo conforms to the desire to improve the welfare of animals during research and also has the potential to advance scientific research. The purpose of the present study was to determine a predictive equation of the dual energy X-ray absorptiometry (DXA) method for broilers by comparing the measurement of body composition using DXA with that by chemical analysis. In total, 720 day-old Cobb500 broilers were distributed into a split-plot arrangement 3 (crude protein concentrations of diets) × 2 (genders) × 2 (methods of chemical body evaluation), with six replications of 20 birds each. To promote the modification of the body composition of broilers, diets varied in the crude protein concentration, which was 70%, 100% and 130% of the required. Two hundred and sixteen birds in different ages were evaluated by its bodyweight, lean, fat and ash contents. The data were submitted to ANOVA and it was demonstrated that the dietary crude protein levels applied allowed a greater variation of the body composition of the birds. Also, the results indicated that the DXA method did not predict fat mass, lean mass or bone mineral content as well as did chemical composition analysis, resulting in the need to develop regression equations for improving the in vivo prediction of these chemical components. The regression equations developed here enable the feather-free body composition of individual broilers to be directly estimated throughout growth using the DXA non-invasive technique.Departamento de Zootecnia UNESP Universidade Estadual Paulista, Via de Acesso Professor Paulo Donato Castellane, s/nSchool of Agricultural Earth and Environmental Sciences University of KwaZulu-Natal, Carbis Road, 3201Departamento de Zootecnia UNESP Universidade Estadual Paulista, Via de Acesso Professor Paulo Donato Castellane, s/nUniversidade Estadual Paulista (Unesp)University of KwaZulu-NatalGonçalves, Camila Angelica [UNESP]Sakomura, Nilva Kazue [UNESP]Pereira Da Silva, Edney [UNESP]Artoni, Silvana Martinez Baraldi [UNESP]Suzuki, Rafael Massami [UNESP]Gous, Robert Mervyn2018-12-11T17:37:34Z2018-12-11T17:37:34Z2018-06-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1071/AN17637Animal Production Science.1836-57871836-0939http://hdl.handle.net/11449/17998810.1071/AN176372-s2.0-8504921582161523290002748580000-0001-5707-4113Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnimal Production Science0,6370,637info:eu-repo/semantics/openAccess2024-06-07T18:41:04Zoai:repositorio.unesp.br:11449/179988Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-07T18:41:04Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Dual energy X-ray absorptiometry is a valid tool for assessing in vivo body composition of broilers |
title |
Dual energy X-ray absorptiometry is a valid tool for assessing in vivo body composition of broilers |
spellingShingle |
Dual energy X-ray absorptiometry is a valid tool for assessing in vivo body composition of broilers Gonçalves, Camila Angelica [UNESP] carcass deposition fat deposition |
title_short |
Dual energy X-ray absorptiometry is a valid tool for assessing in vivo body composition of broilers |
title_full |
Dual energy X-ray absorptiometry is a valid tool for assessing in vivo body composition of broilers |
title_fullStr |
Dual energy X-ray absorptiometry is a valid tool for assessing in vivo body composition of broilers |
title_full_unstemmed |
Dual energy X-ray absorptiometry is a valid tool for assessing in vivo body composition of broilers |
title_sort |
Dual energy X-ray absorptiometry is a valid tool for assessing in vivo body composition of broilers |
author |
Gonçalves, Camila Angelica [UNESP] |
author_facet |
Gonçalves, Camila Angelica [UNESP] Sakomura, Nilva Kazue [UNESP] Pereira Da Silva, Edney [UNESP] Artoni, Silvana Martinez Baraldi [UNESP] Suzuki, Rafael Massami [UNESP] Gous, Robert Mervyn |
author_role |
author |
author2 |
Sakomura, Nilva Kazue [UNESP] Pereira Da Silva, Edney [UNESP] Artoni, Silvana Martinez Baraldi [UNESP] Suzuki, Rafael Massami [UNESP] Gous, Robert Mervyn |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) University of KwaZulu-Natal |
dc.contributor.author.fl_str_mv |
Gonçalves, Camila Angelica [UNESP] Sakomura, Nilva Kazue [UNESP] Pereira Da Silva, Edney [UNESP] Artoni, Silvana Martinez Baraldi [UNESP] Suzuki, Rafael Massami [UNESP] Gous, Robert Mervyn |
dc.subject.por.fl_str_mv |
carcass deposition fat deposition |
topic |
carcass deposition fat deposition |
description |
The use of non-invasive techniques to estimate body composition in animals in vivo conforms to the desire to improve the welfare of animals during research and also has the potential to advance scientific research. The purpose of the present study was to determine a predictive equation of the dual energy X-ray absorptiometry (DXA) method for broilers by comparing the measurement of body composition using DXA with that by chemical analysis. In total, 720 day-old Cobb500 broilers were distributed into a split-plot arrangement 3 (crude protein concentrations of diets) × 2 (genders) × 2 (methods of chemical body evaluation), with six replications of 20 birds each. To promote the modification of the body composition of broilers, diets varied in the crude protein concentration, which was 70%, 100% and 130% of the required. Two hundred and sixteen birds in different ages were evaluated by its bodyweight, lean, fat and ash contents. The data were submitted to ANOVA and it was demonstrated that the dietary crude protein levels applied allowed a greater variation of the body composition of the birds. Also, the results indicated that the DXA method did not predict fat mass, lean mass or bone mineral content as well as did chemical composition analysis, resulting in the need to develop regression equations for improving the in vivo prediction of these chemical components. The regression equations developed here enable the feather-free body composition of individual broilers to be directly estimated throughout growth using the DXA non-invasive technique. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T17:37:34Z 2018-12-11T17:37:34Z 2018-06-07 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1071/AN17637 Animal Production Science. 1836-5787 1836-0939 http://hdl.handle.net/11449/179988 10.1071/AN17637 2-s2.0-85049215821 6152329000274858 0000-0001-5707-4113 |
url |
http://dx.doi.org/10.1071/AN17637 http://hdl.handle.net/11449/179988 |
identifier_str_mv |
Animal Production Science. 1836-5787 1836-0939 10.1071/AN17637 2-s2.0-85049215821 6152329000274858 0000-0001-5707-4113 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Animal Production Science 0,637 0,637 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045305571082240 |