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Selection for ovulation rate in rabbits:Genetic parameters, direct response, and correlated response on litter size

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Selection for ovulation rate in rabbits:Genetic parameters, direct response, and correlated response on litter size

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dc.contributor.author Laborda Vidal, Patricia es_ES
dc.contributor.author Moce, Lorena es_ES
dc.contributor.author Santacreu Jerez, María Antonia es_ES
dc.contributor.author Blasco Mateu, Agustín es_ES
dc.date.accessioned 2013-05-08T12:08:14Z
dc.date.issued 2011-10
dc.identifier.issn 0021-8812
dc.identifier.uri http://hdl.handle.net/10251/28687
dc.description.abstract [EN] The aim of this work was to evaluate the response to 10 generations of selection for ovulation rate. Selection was based on the phenotypic value of ovulation rate, estimated at d 12 of the second gestation by laparoscopy. Selection pressure was approximately 30%. Line size was approximately 20 males and 80 females per generation. Traits recorded were ovulation rate at the second gestation, estimated by laparoscopy as the number of corpora lutea in both ovaries; ovulation rate at the last gestation, estimated postmortem; ovulation rate, analyzed as a single trait including ovulation rate at the second gestation and ovulation rate at the last gestation; right and left ovulation rates; ovulatory difference, estimated as the difference between the right and left ovulation rates; litter size, estimated as the total number of kits born and the number of kits born alive, both recorded at each parity. Totals of 1,477 and 3,031 records from 900 females were used to analyze ovulation rate and litter size, respectively, whereas 1,471 records were used to analyze ovulatory difference, right ovulation rate, and left ovulation rate. Data were analyzed using Bayesian methodology. Heritabilities of ovulation rate, litter size, number of kits born alive, right ovulation rate, left ovulation rate, and ovulatory difference were 0.16, 0.09, 0.08, 0.09, 0.04 and 0.03, respectively. Phenotypic correlations of ovulation rate with litter size, number of kits born alive, and ovulatory difference were 0.09, 0.01, and 0.14, respectively. Genetic correlations of ovulation rate with litter size and with number of kits born alive were estimated with low accuracy, and there was not much evidence for the sign of the correlation. The genetic correlation between ovulation rate and ovulatory difference was positive (P = 0.91). In 10 generations of selection, ovulation rate increased in 1.32 oocytes, with most of the response taking place in the right ovary (1.06 oocytes), but there was no correlated response on litter size (-0.15 kits). In summary, the direct response to selection for ovulation rate was relevant, but it did not modify litter size because of an increase in prenatal mortality. © 2011 American Society of Animal Science. All rights reserved. es_ES
dc.description.sponsorship This study was supported by the Comision Interministerial de Ciencia y Tecnologia (CICYT-AGL2005-07624-C03-01) and by funds from Generalitat Valenciana research program (Prometeo 2009/125). en_EN
dc.language Inglés es_ES
dc.publisher American Society of Animal Science es_ES
dc.relation CICYT/AGL2005-07624-C03-01 es_ES
dc.relation GV/PROMETEO/2009/125 es_ES
dc.relation.ispartof Journal of Animal Science es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Laparoscopy es_ES
dc.subject Litter size es_ES
dc.subject Ovulation rate es_ES
dc.subject Rabbit es_ES
dc.subject Selection es_ES
dc.subject Animal es_ES
dc.subject Article es_ES
dc.subject Female es_ES
dc.subject Genetic selection es_ES
dc.subject Genetics es_ES
dc.subject Male es_ES
dc.subject Ovulation es_ES
dc.subject Physiology es_ES
dc.subject Quantitative trait es_ES
dc.subject Animals es_ES
dc.subject Quantitative Trait, Heritable es_ES
dc.subject Rabbits es_ES
dc.subject Selection, Genetic es_ES
dc.subject Oryctolagus cuniculus es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Selection for ovulation rate in rabbits:Genetic parameters, direct response, and correlated response on litter size es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.2527/jas.2011-3906
dc.rights.accessRights Cerrado 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.description.bibliographicCitation Laborda Vidal, P.; Moce, L.; Santacreu Jerez, MA.; Blasco Mateu, A. (2011). Selection for ovulation rate in rabbits:Genetic parameters, direct response, and correlated response on litter size. Journal of Animal Science. 89:2981-2987. doi:10.2527/jas.2011-3906 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://doi.org/10.2527/jas.2011-3906 es_ES
dc.description.upvformatpinicio 2981 es_ES
dc.description.upvformatpfin 2987 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 89 es_ES
dc.relation.senia 213494
dc.identifier.pmid 21622874
dc.contributor.funder Comisión Interministerial de Ciencia y Tecnología
dc.contributor.funder Generalitat Valenciana


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