- -

Effect of selection for intramuscular fat on the fatty acid composition of rabbit meat

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Effect of selection for intramuscular fat on the fatty acid composition of rabbit meat

Show simple item record

Files in this item

dc.contributor.author Martinez Alvaro, Marina es_ES
dc.contributor.author Blasco Mateu, Agustín es_ES
dc.contributor.author Hernández, Pilar es_ES
dc.date.accessioned 2019-05-23T20:01:59Z
dc.date.available 2019-05-23T20:01:59Z
dc.date.issued 2018 es_ES
dc.identifier.issn 1751-7311 es_ES
dc.identifier.uri http://hdl.handle.net/10251/120997
dc.description.abstract [EN] Intramuscular fat (IMF) content and composition are relevant for the meat industry due to their effect on human health and meat organoleptic properties. A divergent selection experiment for IMF of Longissimus dorsi (LD) muscle was performed in rabbits during eight generations. The aim of this study is to estimate the correlated responses to selection for IMF on the fatty acid composition of LD. Response to selection for IMF was 0.34 g/100 g of LD, representing 2.4 phenotypic SD of the trait. High-IMF line showed 9.20% more monounsaturated fatty acids (MUFA) and 0.39%, 9.97% and 10.3% less n-3, n-6 and polyunsaturated fatty acids (PUFA), respectively, than low-IMF line. The main MUFA and PUFA individual fatty acids followed a similar pattern, except for C18:3n-3 that was greater in the high-IMF line. We did not observe differences between lines for the percentage of total saturated fatty acids, although high-IMF line showed greater C14:0 and C16:0 and lower C18:0 percentages than low-IMF line. Heritability estimates were generally high for all fatty acids percentages, ranging from 0.43 to 0.59 with a SD around 0.08, showing an important genetic component on these traits. Genetic correlations between IMF and LD fatty acid percentages were strong and positive for C14:0, C16:1, C18:1n-9, and MUFA, ranging from 0.88 to 0.97, and strong and negative for C18:0, C18:2n-6, C20:4n6, n-6 and PUFA, ranging from ¿0.83 to ¿0.91. These correlations were accurately estimated, with SD ranging from 0.02 to 0.06. The genetic correlations between IMF and other fatty acids were estimated with lower accuracy. In general, phenotypic and genetic correlations were of the same order. Our experiment shows that selection for IMF strongly affects the fatty acid composition of meat, due the high heritabilities of fatty acids and their high genetic correlations with IMF. es_ES
dc.description.sponsorship This work was supported by project AGL2014-55921-C2-01-P from the Spanish National Research Plan. M. Martinez-Alvaro acknowledges a FPI grant (BES-2012-052655) from the Economy Ministry of Spain. The authors thank Federico Pardo and Marina Morini for their technical assistance. es_ES
dc.language Inglés es_ES
dc.publisher Cambridge University Press es_ES
dc.relation info:eu-repo/grantAgreement/MINECO//AGL2014-55921-C2-1-P/ES/ESTUDIO GENOMICO Y METABOLOMICO DE VARIAS LINEAS DE SELECCION DIVERGENTE EN CONEJO: EL CONEJO COMO MODELO EXPERIMENTAL/ es_ES
dc.relation info:eu-repo/grantAgreement/MINECO//BES-2012-052655/ES/BES-2012-052655/ es_ES
dc.relation.ispartof animal es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Intramuscular fat es_ES
dc.subject Selection es_ES
dc.subject Fatty acids es_ES
dc.subject Correlated responses es_ES
dc.subject Genetic parameters es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Effect of selection for intramuscular fat on the fatty acid composition of rabbit meat es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1017/S1751731117003494 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.description.bibliographicCitation Martinez Alvaro, M.; Blasco Mateu, A.; Hernández, P. (2018). Effect of selection for intramuscular fat on the fatty acid composition of rabbit meat. animal. 12(10):2002-2008. https://doi.org/10.1017/S1751731117003494 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1017/S1751731117003494 es_ES
dc.description.upvformatpinicio 2002 es_ES
dc.description.upvformatpfin 2008 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 12 es_ES
dc.description.issue 10 es_ES
dc.identifier.pmid 29277164
dc.relation.pasarela S\329081 es_ES
dc.contributor.funder Ministerio de Economía y Empresa es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES


This item appears in the following Collection(s)

Show simple item record