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

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

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dc.contributor.author Badawy Elmoghazy, Ahmed Yehia es_ES
dc.contributor.author Peiró Barber, Rosa Mª es_ES
dc.contributor.author Blasco Mateu, Agustín es_ES
dc.contributor.author Santacreu Jerez, María Antonia es_ES
dc.date.accessioned 2020-04-17T12:48:31Z
dc.date.available 2020-04-17T12:48:31Z
dc.date.issued 2019-03 es_ES
dc.identifier.issn 1751-7311 es_ES
dc.identifier.uri http://hdl.handle.net/10251/140850
dc.description.abstract [EN] Farmer profit depends on the number of slaughter rabbits. The improvement of litter size (LS) at birth by two-stage selection for ovulation rate (OR) and LS could modify survival rate from birth to slaughter. This study was aiming to estimate direct and correlated response on LS traits and peri- and postnatal survival traits in the OR_LS rabbit line selected first only for OR (first period) and then for OR and LS using independent culling levels (second period). The studied traits were OR, LS measured as number of total born, number of kits born alive (NBA) and dead (NBD), and number of kits at weaning (NW) and young rabbits at slaughter (NS). Prenatal survival (LS/OR) and survival at birth (NBA/LS), at weaning (NW/NBA) and at slaughter (NS/NW) were also studied. Data were analysed using Bayesian inference methods. Heritability for LS traits were low, 0.07 for NBA, NW and NS. Survival traits had low values of heritability 0.07, 0.03 and 0.03 for NBA/LS, NW/NBA and NS/NW, respectively. After six generations of selection by OR (first period), a small increase in NBD and a slight decrease in NBA/LS were found. However, no correlated responses on NW/NBA and NS/NW were observed. After 11 generations of two-stage selection for OR and LS (second period), correlated responses on NBA, NW and NS were 0.12, 0.12 and 0.11 kits per generation, respectively, whereas no substantial modifications on NBA/LS, NW/NBA and NS/NW were found. In conclusion, two-stage selection improves the number of young rabbits at slaughter without modifying survival from birth to slaughter. 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). A.Y.B. was supported by a grant of the Egyptian Ministry of Higher Education. es_ES
dc.language Inglés es_ES
dc.publisher Cambridge University Press es_ES
dc.relation.ispartof Animal es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Kits dead es_ES
dc.subject Prenatal survival es_ES
dc.subject Perinatal survival es_ES
dc.subject Pre-weaning survival es_ES
dc.subject Post-weaning survival es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.subject.classification GENETICA es_ES
dc.title Correlated responses on litter size traits and survival 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/S1751731118002033 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.relation.projectID 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.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Biotecnología - Departament de Biotecnologia 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 Ciencia Animal - Departament de Ciència Animal es_ES
dc.description.bibliographicCitation Badawy Elmoghazy, AY.; Peiró Barber, RM.; Blasco Mateu, A.; Santacreu Jerez, MA. (2019). Correlated responses on litter size traits and survival traits after two-stage selection for ovulation rate and litter size in rabbits. Animal. 13(3):453-459. https://doi.org/10.1017/S1751731118002033 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1017/S1751731118002033 es_ES
dc.description.upvformatpinicio 453 es_ES
dc.description.upvformatpfin 459 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 13 es_ES
dc.description.issue 3 es_ES
dc.relation.pasarela S\369237 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Egyptian Ministry of Higher Education es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
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