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Effect of restricted feeding under rearing on reproduction, body condition and blood metabolites of rabbit does selected for growth rate

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Effect of restricted feeding under rearing on reproduction, body condition and blood metabolites of rabbit does selected for growth rate

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dc.contributor.author Naturil-Alfonso, C. es_ES
dc.contributor.author Marco-Jiménez, F. es_ES
dc.contributor.author Pascual, J.J. es_ES
dc.contributor.author Vicente, J.S. es_ES
dc.date.accessioned 2018-01-04T11:57:31Z
dc.date.available 2018-01-04T11:57:31Z
dc.date.issued 2017-12-28
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/93931
dc.description.abstract [EN] Young rabbit females selected for growth rate can have nutritional needs which may not be met by the common practice of feed restriction during rearing in commercial rabbit production. The aim of this study was to analyse the effect of two different feeding programmes: restricted and ad libitum feeding, applied in young rabbit females for one month at the end of rearing, on reproductive performance, body condition and circulating metabolic hormones and metabolites in a rabbit line selected by growth rate in 3 consecutive reproductive cycles. Thus, twenty-four 16-week-old does were randomly assigned to a group in which the daily recommended nutrient intakes were satisfied (fed restricted: 130 g/day, n=13) or a group fed to satiety (ad libitum: 235.5 g/day, n=11) during one month. Then, all does were inseminated in 3 consecutive cycles using a 42-day reproductive cycle. Measurements of does’ body weight, perirenal fat thickness and plasma leptin, non-esterified-fatty-acids (NEFA), beta-hydroxybutyrate (BOHB) and fructosamine were performed at artificial insemination (AI), parturition and weaning time in 3 consecutive cycles. Reproductive performance of does was evaluated based on fertility, litter size at parturition, prolificacy and productivity. Differences in body weight were found only in the 1st cycle, ad libitum fed females being heavier than restricted ones. Nevertheless, body weight variances disappeared in later cycles. No differences were found in perirenal fat thickness. Finally, in ad libitum fed females slight differences were found in plasma levels of NEFAs (452 vs. 258 μekv/L and 527 vs. 306 μekv/L for 1st and 2nd cycles) and BOHB (0.26 vs. 0.03 mM for 2nd cycle), but disappeared in the 3rd reproductive cycle. Fertility, prolificacy and productivity was not significantly affected by the feeding programme. Nevertheless, total litter size showed to be higher in ad libitum fed females at second parturition (8.7 vs. 5.9 kits). Therefore, the evaluated feeding programmes until first AI in females selected by growth rate had no effect on their reproductive outcomes, as the global reproductive performance was not affected. es_ES
dc.description.sponsorship This work was supported by the Spanish Research Project AGL2014- 53405-C2-1-P (CICYT). Carmen Naturil was supported by a research grant from the Education Ministry of the Valencian Regional Government (programme VALi+d. ACIF ⁄ 2013 ⁄ 296). English text version revised by N. Macowan English Language Service. es_ES
dc.language Inglés es_ES
dc.publisher Universitat Politècnica de València
dc.relation CICYT/AGL2014- 53405-C2-1-P
dc.relation GV/VALi+d/ACIF/2013/296
dc.relation.ispartof World Rabbit Science
dc.rights Reserva de todos los derechos es_ES
dc.subject Feeding regimen es_ES
dc.subject Metabolic status es_ES
dc.subject Reproductive performance es_ES
dc.subject Rabbit doe es_ES
dc.subject Growth rate es_ES
dc.title Effect of restricted feeding under rearing on reproduction, body condition and blood metabolites of rabbit does selected for growth rate es_ES
dc.type Artículo es_ES
dc.date.updated 2018-01-04T11:43:44Z
dc.identifier.doi 10.4995/wrs.2017.6848
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Naturil-Alfonso, C.; Marco-Jiménez, F.; Pascual, J.; Vicente, J. (2017). Effect of restricted feeding under rearing on reproduction, body condition and blood metabolites of rabbit does selected for growth rate. World Rabbit Science. 25(4):303-312. doi:10.4995/wrs.2017.6848 es_ES
dc.description.accrualMethod SWORD es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.2017.6848 es_ES
dc.description.upvformatpinicio 303 es_ES
dc.description.upvformatpfin 312 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 25
dc.description.issue 4
dc.identifier.eissn 1989-8886
dc.contributor.funder Comisión Interministerial de Ciencia y Tecnología
dc.contributor.funder Generalitat Valenciana


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