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Canalisation analysis of birth weight in Bruna dels Pirineus beef cattle

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Canalisation analysis of birth weight in Bruna dels Pirineus beef cattle

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dc.contributor.author Fina, M. es_ES
dc.contributor.author Ibáñez-Escriche, Noelia es_ES
dc.contributor.author Piedrafita, J. es_ES
dc.contributor.author Casellas, J. es_ES
dc.date.accessioned 2020-03-05T07:11:41Z
dc.date.available 2020-03-05T07:11:41Z
dc.date.issued 2013-07 es_ES
dc.identifier.issn 0021-8812 es_ES
dc.identifier.uri http://hdl.handle.net/10251/138357
dc.description.abstract [EN] Although heteroskedasticity has been a main topic of interest in beef cattle during recent decades, the current availability of canalization models provided new insights for animal breeding programs. Within this context, birth BW (BWT) was analyzed in the Bruna dels Pirineus beef cattle breed by implementing canalization models that accounted for heterogeneous residual variances due to 30systematic, permanent environmental effects and additive genetic effects. Analyses were performed on BWT data from 8,130 calves born in 12 commercial breeding herds contributing to the yield recording scheme of the Bruna dels Pirineus breed. Analytical models accounted for direct additive genetic, permanent environmental, and 4 systematic effects (i.e., age of the dam, sex of the calf, birth type, and herd-year-season), and the same effects were evaluated as potential sources of variation in the residual term. Their relevance was checked by the deviance information criterion (DIC), and only residual additive genetic, permanent environmental, birth type, and herd-year-season remained in the operational model, all of them originating relevant reductions in the DIC parameter. Bruna dels Pirineus calves showed a moderate heritability of 0.30 (95% high posterior density, 0.19 to 0.40) for BWT; additional additive genetic variability was revealed in the residual term, this being positively correlated with the direct additive genetic component (0.44; 95% high posterior density, 0.37 to 0.54). Genetic trends were evaluated on both sources of additive genetic variance, and relevant patterns were identified in several herds. Although this breed did not evidence a homogeneous genetic trend for the whole population, herd- specific positive and negative trends were revealed, suggesting the plausibility of genetic selection for canalization on BWT in beef cattle breeds. These results must be viewed as a contribution to the canalization research field, providing relevant information for the breeding scheme of the Bruna dels Pirineus breed, as well as important insights about the genetic background of BWT for the beef industry worldwide. es_ES
dc.description.sponsorship Research was supported by a contract with the Departament d Agricultura, Ramaderia, Pesca, Alimentació i Medi Rural of the Generalitat de Catalunya (Barcelona, Spain). The authors are indebted to the Federació Catalana de la Raça Bruna dels Pirineus (Berga, Spain; http://www.brunadelspirineus.org) and its associates for providing field data for these analyses. The research contract of J. Casellas was partially funded by the Ministerio de Ciencia e Innovación (Madrid, Spain) of the Spanish government (reference RYC-2009-04049). es_ES
dc.language Inglés es_ES
dc.publisher American Society of Animal Science es_ES
dc.relation MICINN/RYC-2009-04049 es_ES
dc.relation.ispartof Journal of Animal Science es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Bayesian analysis es_ES
dc.subject Birth weight es_ES
dc.subject Bruna dels Pirineus es_ES
dc.subject Canalization es_ES
dc.subject Heterogeneous variance es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Canalisation analysis of birth weight in Bruna dels Pirineus beef cattle es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.2527/jas.2012-5675 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 Fina, M.; Ibáñez-Escriche, N.; Piedrafita, J.; Casellas, J. (2013). Canalisation analysis of birth weight in Bruna dels Pirineus beef cattle. Journal of Animal Science. 91(7):3070-3078. https://doi.org/10.2527/jas.2012-5675 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.2527/jas.2012-5675 es_ES
dc.description.upvformatpinicio 3070 es_ES
dc.description.upvformatpfin 3078 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 91 es_ES
dc.description.issue 7 es_ES
dc.identifier.pmid 23658344 es_ES
dc.relation.pasarela S\343539 es_ES
dc.contributor.funder Generalitat de Catalunya es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES


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