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Effect of immunocastration and caponization on fatty acid composition of male chicken meat

2019Journal article Open access
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dc.contributor.authorAntunes, Irene
dc.contributor.authorQuaresma, M.A.G.
dc.contributor.authorRibeiro, Maria
dc.contributor.authorAlves, S.P.
dc.contributor.authorMartins da Costa, Paulo
dc.contributor.authorBessa, R.J.B.
dc.date.accessioned2020-11-23T15:12:41Z
dc.date.available2020-11-23T15:12:41Z
dc.date.issued2019
dc.description.abstractRecently, immunocastration with Improvac (ImmC). has been tested in broilers and a considerable reduction in serum testosterone concentration (reduced by 79% compared to roosters) was observed. The aim of this study was to evaluate the effect of immunocastration on meat fatty acid (FA) composition and its comparison with caponized and intact males (roosters). The study was conducted with 3 experimental groups: control group (roosters), the group of birds submitted to surgical caponization (SurgC), and the group of birds submitted to immunocastration with Improvac. The comparison of breast meat partial FA sums of castrated (SurgC and ImmC) with control birds (roosters) revealed that castrated birds showed significantly higher content of n-3 polyunsaturated fatty acids (n-3 PUFA) than control birds (1.76 vs. 1.46 g/100 g of total FA; superiority of 20.2%), which has contributed to the occurrence of significant differences on both the n-6/n-3 ratio and the atherogenicity index (AI). In contrast, on leg meat portion, castrated birds displayed higher contents of both total saturated and monounsaturated fatty acids (SFA and MUFA, with 2.2 and 4.1% more, respectively) and lower total n-6 PUFA content (8.3% less) than was observed in control birds, which contributed to significant differences in the AI index. On the other hand, the comparison of breast meat portion from SurgC with ImmC showed that immunocastration contributed to lower total SFA and higher total n-6 PUFA, which have contributed to significant differences on both Polyunsaturated/Saturated (P/S) and n-6/n-3 ratios. Whereas, on leg meat portion no significant differences were observed on partial sums and a single difference was observed on the thrombogenicity index. Immunocastration of broilers has contributed to minor changes in the FA profile, but has improved the overall lipid quality indexes in both breast and leg meat portions. Therefore, immunocastration could be applied as an alternative method to caponization without negative consequences in meat FA profile.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAntunes, I.C.; Quaresma, M.A.G.; Ribeiro, M.F.; Alves, S.P.; Martins da Costa, P. & Bessa, R.J.B. (2019). Effect of immunocastration and caponization on fatty acid composition of male chicken meat. Poultry Science. 98 (7): 2823-2829pt_PT
dc.identifier.doihttps://doi.org/10.3382/ps/pez034pt_PT
dc.identifier.eissn0032-5791
dc.identifier.urihttp://hdl.handle.net/10400.15/3110
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPoultry Science Association, Elsevierpt_PT
dc.relationFundação para a Ciencia e Tecnologia under the CIISA Project - UID/CVT/00276/2019pt_PT
dc.relationZoest Portugalpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0032579119302111?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectCaponpt_PT
dc.subjectfatty acidspt_PT
dc.subjectImprovacpt_PT
dc.subjectimmunocastrationpt_PT
dc.titleEffect of immunocastration and caponization on fatty acid composition of male chicken meatpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2829pt_PT
oaire.citation.issue7pt_PT
oaire.citation.startPage2823pt_PT
oaire.citation.titlePoultry sciencept_PT
oaire.citation.volume98pt_PT
person.familyNameSilva Antunes
person.familyNameGonçalves Quaresma
person.familyNameSilva Pires Fernandes Ribeiro
person.familyNameMartins da Costa
person.familyNameBessa
person.givenNameIrene Cristina
person.givenNameMário Alexandre
person.givenNameMaria Fernanda
person.givenNamePaulo Manuel Rodrigues
person.givenNameRui
person.identifierB-8006-2008
person.identifier.ciencia-id151A-8221-8F3C
person.identifier.ciencia-id1D1A-036A-8034
person.identifier.ciencia-id7E17-46D8-FBBB
person.identifier.ciencia-id3517-834C-6370
person.identifier.ciencia-idBA1F-EDCB-D1AC
person.identifier.orcid0000-0002-1298-3281
person.identifier.orcid0000-0002-6988-3935
person.identifier.orcid0000-0001-6115-8811
person.identifier.orcid0000-0003-4109-3488
person.identifier.scopus-author-id56372529300
person.identifier.scopus-author-id8563396000
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication03905c98-5cd3-40e4-91f1-961ea55def7f
relation.isAuthorOfPublicationa125da9f-d257-4fb9-b665-5c29f834ff2b
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relation.isAuthorOfPublication.latestForDiscovery03905c98-5cd3-40e4-91f1-961ea55def7f

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