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Long-term implications of feed energy source in different genetic types of reproductive rabbit females: III. Fitness and productivity

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Long-term implications of feed energy source in different genetic types of reproductive rabbit females: III. Fitness and productivity

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dc.contributor.author Arnau-Bonachera, Alberto es_ES
dc.contributor.author Savietto, Davi es_ES
dc.contributor.author Pascual Amorós, Juan José es_ES
dc.date.accessioned 2019-05-23T20:04:04Z
dc.date.available 2019-05-23T20:04:04Z
dc.date.issued 2018 es_ES
dc.identifier.issn 1751-7311 es_ES
dc.identifier.uri http://hdl.handle.net/10251/121014
dc.description.abstract [EN] The specialization process associated with genetic selection could be associated with functional disorders, affecting the reproductive success of females (fitness). We hypothesized that by modulating energy acquisition and allocation of females we could balance productivity and reproductive success. To test this hypothesis, we used 203 rabbit females belonging to three genetic types: H (n=66) maternal line specialized in prolificacy, LP (n=67) generalist maternal line, R (n=70) paternal line specialized in growth rate. We fed each genetic type with two diets specifically designed to promote milk yield (AF) or body reserves recovery (CS). We controlled females between their first and fifth reproductive cycles, recording traits related with productivity and fitness of females. H females fed CS had on average 11.2 +/- 0.43 kits with an individual weight of 54 +/- 1.2 g at birth and 525 +/- 11 g at weaning. Their conception rate when multiparous was 44% and their survival rate at the end of the experiment 30%. When they were fed AF, the individual weight of kits was 3.8 g heavier (P<0.05) at birth and 38 g heavier at weaning (P<0.05), the conception rate when multiparous increased 23 percentage points (P<0.05) and the survival rate at the end of the experiment 25 percentage points (P<0.05). LP females fed CS had on average 10.8 +/- 0.43 kits with an individual weight of 52 +/- 1.2 g at birth and 578 +/- 11 g at weaning. Their conception rate when multiparous was 79% and their survival rate at the end of the experiment 75%. When they were fed AF, it only increased individual weight of kits at weaning (+39 g; P<0.05). R females fed CS had on average 8.4 +/- 0.43 kits with an individual weight of 60 +/- 1.2 g at birth and 568 +/- 11 g at weaning. Their conception rate when multiparous was 60% and their survival rate at the end of the experiment 37%. When they were fed AF, they presented 1.4 kits less at birth (P<0.05) but heavier at birth (+4.9 g; P<0.05) and at weaning (+37 g; P<0.05). Therefore, we observed that genetic types prioritized different fitness components and that diets could affected them. In this sense, seems that more specialized genetic types, were more sensitive to diets than the more generalist type. es_ES
dc.description.sponsorship This study was supported by the Interministerial Commission for Science and Technology (CICYT) of the Spanish Government (AGL2014-53405-C2-1-P). The authors thank Juan Carlos Moreno for his technical support. Grants for Alberto Arnau from the Ministry of Economy and Finance (BES-2012-052345) are also gratefully acknowledged. 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 Functionality es_ES
dc.subject Productivity es_ES
dc.subject Priority es_ES
dc.subject Trade-off es_ES
dc.subject Long term es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Long-term implications of feed energy source in different genetic types of reproductive rabbit females: III. Fitness and productivity es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1017/S1751731117003305 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//AGL2014-53405-C2-1-P/ES/MEJORA GENETICA DEL CONEJO DE CARNE:RESPUESTA A LA SELECCION Y SU EFECTO SOBRE LA REPRODUCCION, ALIMENTACION Y SALUD UTILIZANDO UNA POBLACION CONTROL CRIOCONSERVADA/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//BES-2012-052345/ES/BES-2012-052345/ 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.description.bibliographicCitation Arnau-Bonachera, A.; Savietto, D.; Pascual Amorós, JJ. (2018). Long-term implications of feed energy source in different genetic types of reproductive rabbit females: III. Fitness and productivity. animal. 12(9):1886-1894. https://doi.org/10.1017/S1751731117003305 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1017/S1751731117003305 es_ES
dc.description.upvformatpinicio 1886 es_ES
dc.description.upvformatpfin 1894 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 12 es_ES
dc.description.issue 9 es_ES
dc.identifier.pmid 29224584
dc.relation.pasarela S\355324 es_ES
dc.contributor.funder Ministerio de Economía y Empresa es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES


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