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Divergent selection for intramuscular fat content in rabbits. I. Direct response to selection and heritability for intramuscular fat content

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Divergent selection for intramuscular fat content in rabbits. I. Direct response to selection and heritability for intramuscular fat content

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dc.contributor.author Zomeño Segado, Cristina es_ES
dc.contributor.author Hernández, Pilar es_ES
dc.contributor.author Blasco Mateu, Agustín es_ES
dc.date.accessioned 2016-07-08T10:59:25Z
dc.date.available 2016-07-08T10:59:25Z
dc.date.issued 2013-09
dc.identifier.issn 0021-8812
dc.identifier.uri http://hdl.handle.net/10251/67378
dc.description.abstract [EN] The aim of this study was to evaluate the selection response on intramuscular fat (IMF) content of LM after 3 generations of divergent selection. Heritability and genetic means for IMF content were also analyzed. Selection was based on the phenotypic value of IMF content measured in 2 full sibs of the first parity. Selection pressure on females was 13% in the base generation and 26% for the next generations. Males were selected within sire families to reduce inbreeding. Line size was 13 males and 83 females in the base population and approximately 8 males and 40 females for high (High) and low (Low)lines in the next generations. A total of 668 records were used to estimate the selection response on IMF. The pedigree file used to estimate heritability and genetic means contained 1,332 animals. Data were analyzed using Bayesian methodology. Differences between lines for IMF were 0.08, 0.10, and 0.09 g/100 g muscle in the first, second, and third generation, respectively. These differences represent a direct and cumulative selection response of 9% of the mean, of which 6.8% was obtained in the first generation. Heritability of IMF content was moderate to high (0.37) with a probability of 97% of being greater than 0.20. The response to selection estimated using an animal model was 0.033, 0.052 and 0.054 g/100 g muscle in line High and 0.032, 0.046, and 0.051 g/100 g muscle in line Low in the first, second, and third generation, respectively. Results of the present experiment confirmed that IMF content can be improved through selection in rabbits. es_ES
dc.description.sponsorship This work was supported by projects AGL2008-05514-C02-01 and AGL2011-29831-C03-01 by the Spanish National Research Plan and PROMETEO/2009/125 of the Generalitat Valenciana. C. Zomeno acknowledges a Formacion de Profesorado Universitario (FPU) grant from the Ministerio de Educacion y Ciencia (MEC), Spain. The authors thank Veronica Juste and Federico Pardo for their technical assistance.
dc.language Inglés es_ES
dc.publisher American Society of Animal Science es_ES
dc.relation.ispartof Journal of Animal Science es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Bayesian inference es_ES
dc.subject Intramuscular fat es_ES
dc.subject Rabbits es_ES
dc.subject Response to selection es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Divergent selection for intramuscular fat content in rabbits. I. Direct response to selection and heritability for intramuscular fat content es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.2527/jas.2013-6361
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//AGL2008-05514-C02-01/ES/MEJORA GENETICA DEL TAMAÑO DE CAMADA Y LA CALIDAD DE CARNE DEL CONEJO/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//AGL2011-29831-C03-01/ES/SELECCION PARA MEJORAR LA PRODUCTIVIDAD Y LA CALIDAD DE LA CARNE DEL CONEJO/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/Generalitat Valenciana//PROMETEO09%2F2009%2F125/ES/Efecto de la crioconservación de embriones sobre el desarrollo y el re-establecimiento de poblaciones/ es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.description.bibliographicCitation Zomeño Segado, C.; Hernández, P.; Blasco Mateu, A. (2013). Divergent selection for intramuscular fat content in rabbits. I. Direct response to selection and heritability for intramuscular fat content. Journal of Animal Science. 91(9):4526-4531. https://doi.org/10.2527/jas.2013-6361 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://dx.doi.org/10.2527/jas.2013-6361 es_ES
dc.description.upvformatpinicio 4526 es_ES
dc.description.upvformatpfin 4531 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 91 es_ES
dc.description.issue 9 es_ES
dc.relation.senia 260296 es_ES
dc.identifier.pmid 23825344
dc.contributor.funder Generalitat Valenciana
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES
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