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Digestive efficiency in rabbit does according to environment and genetic type

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Digestive efficiency in rabbit does according to environment and genetic type

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dc.contributor.author Savietto, Davi es_ES
dc.contributor.author Blas Ferrer, Enrique es_ES
dc.contributor.author Cervera Fras, Mª Concepción es_ES
dc.contributor.author Baselga Izquierdo, Manuel es_ES
dc.contributor.author Friggens, Nicolas C. es_ES
dc.contributor.author Larsen, Torben es_ES
dc.contributor.author Pascual Amorós, Juan José
dc.date.accessioned 2012-10-05T11:55:07Z
dc.date.issued 2012
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/17436
dc.description.abstract [EN] Ninety lactating rabbit does of three different genetic types [2 from a line differentiating 20 generations by selection for litter size at weaning (lines V16 and V36) and 1 from a line founded under reproductive longevity criteria and then selected by litter size at weaning (line LP)] were subjected to three environmental conditions: NC, females housed under normal conditions (14 to 20oC) and fed with a control diet (333 g NDF/kg DM); HC, females housed under heat conditions (25 to 35oC) and fed with the control diet; or NF, females housed under normal conditions and fed with a fibrous diet (443 g NDF/kg DM). The apparent digestible coefficients of dry matter (DMd), organic matter, crude protein (CPd), gross energy, NDF (NDFd) and acid detergent fibre, as well as the daily intake of dry matter (DM), digestible protein (DP) and digestible energy (DE), were determined (14 to 18 d post-partum). The environment affected all variables analysed. In general, heat conditions reduced the daily feed intake (around -30%; P<0.05) and increased main apparent digestible coefficients (+4.5 percentage points for DMd). In contrast, the use of a fibrous diet led to lower DE intake (-217 kJ/d; P<0.05) and main apparent digestibility coefficients (-13.5 percentage points for DMd). Females from line V, regardless of generation, showed lower daily DM intake (-19.2 g/d; P<0.05) and NDFd (-1.5 percentage points; P<0.05) than line LP. Interactions between genetic type and environment were found for daily DM intake, NDFd and CPd. When receiving fibrous diet, LP females showed a higher increment in daily DM intake (65.6 g/d; P<0.05) than V36 females, compared to control. Under heat conditions, NDFd obtained for LP females were higher to those in normal conditions (+3.14 percentage points), while V females showed similar NDFd. In addition, the increase in CPd observed under heat conditions was higher for LP (+9.87 percentage points) and V36 (+8.74 percentage points) than V16 females (+3.84 percentage points). In conclusion, rabbit females from a line founded for reproductive longevity seem to show a higher flexibility in their digestive capacity under constrained conditions. es_ES
dc.description.sponsorship The authors would like to thanks Luis Rodenas, Eugenio Martinez-Paredes and Juan Carlos Moreno for their technical support and to the Spanish Ministry of Education and Science (Project AGL2011-30170-C02-01) for the economic support to conduct this study. en_EN
dc.language Inglés es_ES
dc.publisher Editorial Universitat Politècnica de València es_ES
dc.relation MECD/AGL2011-30170-C02-01
dc.relation.ispartof World Rabbit Science
dc.rights Reserva de todos los derechos es_ES
dc.subject Rabbit does es_ES
dc.subject Heat stress es_ES
dc.subject Dietary energy es_ES
dc.subject Genetic improvement es_ES
dc.subject Digestibility es_ES
dc.title Digestive efficiency in rabbit does according to environment and genetic type es_ES
dc.type Artículo es_ES
dc.date.updated 2012-10-05T10:24:54Z
dc.identifier.doi 10.4995/wrs.2012.1152
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural - Escola Tècnica Superior d'Enginyeria Agronòmica i del Medi Natural es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.description.bibliographicCitation Friggens, NC.; Larsen, T.; Savietto ., D.; Blas Ferrer, E.; Cervera Fras, MC.; Baselga Izquierdo, M.; Pascual Amorós, JJ. (2012). Digestive efficiency in rabbit does according to environment and genetic type. World Rabbit Science. 20(3). doi:10.4995/wrs.2012.1152 es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.2012.1152
dc.description.volume 20
dc.description.issue 3
dc.identifier.eissn 1989-8886
dc.contributor.funder Ministerio de Educación y Ciencia (MECD)


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