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Correlated responses on growth traits after two-stage selection for ovulation rate and litter size in rabbits

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Correlated responses on growth traits after two-stage selection for ovulation rate and litter size in rabbits

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dc.contributor.author Peiró Barber, Rosa Mª es_ES
dc.contributor.author Yehia-Badawy Elmoghazy, Ahmed es_ES
dc.contributor.author Blasco Mateu, Agustín es_ES
dc.contributor.author Santacreu Jerez, María Antonia es_ES
dc.date.accessioned 2020-05-29T03:32:45Z
dc.date.available 2020-05-29T03:32:45Z
dc.date.issued 2019-11 es_ES
dc.identifier.issn 1751-7311 es_ES
dc.identifier.uri http://hdl.handle.net/10251/144566
dc.description.abstract [EN] Rabbit commercial maternal lines are usually selected for litter size (LS) and paternal lines for growth rate (GR). Line OR_LS was selected by ovulation rate (OR) and LS to improve LS more efficiently. In this study, growth traits of line OR_LS were evaluated by estimating the correlated response on weaning weight (WW), slaughter weight (SW) and GR during fattening period as well as their variability (DWW, DSW and DGR, respectively). Data were analyzed using Bayesian inference methods. Heritability estimates were low for growth traits (0.09, 0.13 and 0.14 for WW, SW and GR, respectively) and negligible for growth traits variability (0.01, 0.004 and 0.01 for DWW, DSW and DGR, respectively). Moderate common litter effect ratio (c(2); 0.35, 0.28 and 0.27) and low maternal effect ratio (m(2); 0.11, 0.05 and 0.01) were obtained for WW, SW and GR, respectively. Both c(2) and m(2) were lower at slaughter than at weaning. In addition, low common litter effect and negligible maternal effect were observed for growth traits variability. Genetic correlations between LS and both growth traits and their variability were close to zero. Positive genetic correlations were observed between OR and growth traits (0.19, 0.38 and 0.36 for WW, SW and GR, respectively) as well as between OR and growth traits variability (0.35, 0.62 and 0.20 for DWW, DSW and DGR, respectively). Positive correlated responses in both periods were obtained for growth traits, WW, SW and GR (0.037, 0.156 and 0.110 kg, respectively). The correlated response found in growth traits might be due to the positive genetic correlations between OR and these traits. However, selection for OR and LS using independent culling levels did not modify the growth traits variability. Therefore, no negative consequences on growth traits can be expected in current commercial maternal lines. es_ES
dc.description.sponsorship This study was supported by the Ministerio de Economia y Competitividad (AGL2014-55921-C2-1-P) and by funds from Generalitat Valenciana research programme (Prometeo 2009/125). es_ES
dc.language Inglés es_ES
dc.publisher Cambridge University Press es_ES
dc.relation GENERALITAT VALENCIANA/PROMETEO/2009/125 es_ES
dc.relation MINISTERIO DE ECONOMIA Y EMPRESA/AGL2014-55921-C2-1-P es_ES
dc.relation AEI/AGL2017-86083-C2-1-P-AR es_ES
dc.relation.ispartof Animal es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Genetic parameters es_ES
dc.subject Growth rate es_ES
dc.subject Slaughter weight es_ES
dc.subject Growth traits variability es_ES
dc.subject Weaning weight es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.subject.classification GENETICA es_ES
dc.title Correlated responses on growth traits after two-stage selection for ovulation rate and litter size in rabbits es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1017/S1751731119001423 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.contributor.affiliation Universitat Politècnica de València. Instituto de Ciencia y Tecnología Animal - Institut de Ciència i Tecnologia Animal es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Biotecnología - Departament de Biotecnologia es_ES
dc.description.bibliographicCitation Peiró Barber, RM.; Yehia-Badawy Elmoghazy, A.; Blasco Mateu, A.; Santacreu Jerez, MA. (2019). Correlated responses on growth traits after two-stage selection for ovulation rate and litter size in rabbits. Animal. 13(11):2457-2462. https://doi.org/10.1017/S1751731119001423 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1017/S1751731119001423 es_ES
dc.description.upvformatpinicio 2457 es_ES
dc.description.upvformatpfin 2462 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 13 es_ES
dc.description.issue 11 es_ES
dc.relation.pasarela S\410142 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Agencia Estatal de Investigación es_ES
dc.contributor.funder Ministerio de Economía y Empresa es_ES


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