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Divergent selection for intramuscular fat content in rabbits. II. Correlated responses on carcass and meat quality traits

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Divergent selection for intramuscular fat content in rabbits. II. Correlated responses on carcass and meat quality traits

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dc.contributor.author Zomeño Segado, Cristina es_ES
dc.contributor.author Blasco Mateu, Agustín es_ES
dc.contributor.author Hernández, Pilar es_ES
dc.date.accessioned 2016-07-08T10:54:36Z
dc.date.available 2016-07-08T10:54:36Z
dc.date.issued 2013-09
dc.identifier.issn 0021-8812
dc.identifier.uri http://hdl.handle.net/10251/67376
dc.description.abstract [EN] Correlated responses on carcass and meat quality characteristics after 3 generations of divergent selection for intramuscular fat (IMF) content were assessed by comparing the high and low lines. Selection was based on the phenotypic value of IMF content of LM, measured in 2 full sibs of the first parity. Traits measured were: BW, HCW, commercial carcass weight (CCW), reference carcass weight (RCW), scapular (SF) and perirenal fat (PF) content, meat-to-bone ratio (M:B) of the hind leg, pH of LM, color (lightness, L*; redness, a*; and yellowness, b*) of the carcass and of a LM section, protein content, and fatty acid (FA) composition of LM. A total of 174 records was used to estimate the correlated selection response. Data were analyzed using Bayesian methodology. We considered one-third of the phenotypic SD of a trait as a relevant value for the difference between lines. Then, the probability of the difference being greater than a relevant value (PR) was calculated. A low PR implies that the lines compared are similar. Carcass weights (PR between 0.24 and 0.31) and M:B of the hind leg (PR = 0.15) were not modified by selection for IMF content. There was a slight negative correlated response for BW, although evidence of its relevance was low (PR = 0.48). Scapular fat content was similar between lines (PR = 0.03). There were differences for PF content, although there was low evidence for showing its relevance (PR = 0.47). Color traits of the carcass were not affected by selection (PR between 0.04 and 0.30). In muscle, L* was also similar between lines (PR = 0.26). There were differences for a* and b*, although there was little evidence of their relevance (PR = 0.35 and 0.40, respectively). There was a positive correlated response on muscle pH and differences could be relevant (PR = 0.77). Protein content of LM was similar between lines (PR = 0.13), whereas FA composition was affected by selection. There were relevant differences between lines for MUFA (PR = 0.99), n-3 (PR = 0.95), and n-6 (PR = 0.98) percentages. For individual FA, differences were relevant for C18:1n-9 (PR = 0.97) and C20:5 n-3 (PR = 0.98). In conclusion, selection for IMF content may modify carcass quality by increasing PF content. Moreover, it led to some modifications in pH and FA composition of LM 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 grant from the Ministerio de Educacion y Ciencia, 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 MICINN/AGL2008-05514-C02-01 es_ES
dc.relation MICINN/AGL2011-29831-C03-01 es_ES
dc.relation GV/PROMETEO/2009/125 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 Carcass quality es_ES
dc.subject Intramuscular fat es_ES
dc.subject Meat quality 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. II. Correlated responses on carcass and meat quality traits es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.2527/jas.2013-6417
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.; Blasco Mateu, A.; Hernández, P. (2013). Divergent selection for intramuscular fat content in rabbits. II. Correlated responses on carcass and meat quality traits. Journal of Animal Science. 91(9):4532-4539. doi:10.2527/jas.2013-6417 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion https://dx.doi.org/10.2527/jas.2013-6417 es_ES
dc.description.upvformatpinicio 4532 es_ES
dc.description.upvformatpfin 4539 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 261913 es_ES
dc.identifier.pmid 23825330
dc.contributor.funder Ministerio de Ciencia e Innovación
dc.contributor.funder Generalitat Valenciana


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