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Litter size components in a full diallel cross of four maternal lines of rabbits

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Litter size components in a full diallel cross of four maternal lines of rabbits

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dc.contributor.author Mohamed Ragab, Mohamed es_ES
dc.contributor.author Sánchez Serrano, Juan Pablo es_ES
dc.contributor.author Mínguez Balaguer, Carlos es_ES
dc.contributor.author Vicente Antón, José Salvador es_ES
dc.contributor.author Baselga Izquierdo, Manuel es_ES
dc.date.accessioned 2016-01-18T13:11:37Z
dc.date.available 2016-01-18T13:11:37Z
dc.date.issued 2014-08
dc.identifier.issn 0021-8812
dc.identifier.uri http://hdl.handle.net/10251/59993
dc.description.abstract [EN] A crossbreeding experiment between 4 Spanish maternal lines of rabbits was performed to estimate crossbreeding effects on litter size components. The experiment was designed as a complete diallel cross involving 4 lines selected for litter size at weaning (A, V, H, and LP [L]) and their 12 simple crosses. Does from these 16 genetic groups were distributed among 4 Spanish farms, but only V line was present in all farms, allowing connectivity of the data. A total of 2,015 does in the third, fourth, or fifth gestations were subjected to laparoscopy. The recorded traits were ovulation rate (OR), number of implanted embryos (IE), total born (TB), embryo survival (ES), foetal survival (FS), and prenatal survival (PS). The differences in direct genetic effects, maternal genetic effects, and individual heterosis between the lines were estimated according to Dickerson s model. Line A was significantly inferior to lines V and H, whereas line LP was similar to A line, but for FS and PS, line A showed the best values, followed by line LP. Comparing crossbred groups to line V, significant differences were shown favoring crossbred groups for OR and IE. The crossbred groups presented high implantation rate, but the foetal survival was lower than in V line. Important values for commercial production were presented by some crosses for OR (HV, 1.26 ova), IE (AH, 1.50 embryos; HV, 1.41 embryos), and TB (AH, 0.82 rabbits; HV, 0.78 rabbits). Relevant and significant reciprocal effects were found, especially for OR in all cases except the LV and VL crosses. These differences become nonsignificant in most of the other traits. Regarding direct genetic effects, line A presented lower estimates than the other lines with important values for OR, but the opposite was observed for FS. The maternal effects were significant only for some contrasts in OR and revealed that the LP line was inferior to the others (1.08 ova compared to the A line, 1.23 compared to the H line, and 0.38 compared to the V line). In general, high positive values for heterosis were found in crossbred does for OR and IE. The crosses, where lines A and H were involved, showed significant heterosis. The highest values were obtained by crossing lines A and H (1.18 ova for OR, 1.87 embryos for IE) followed by the cross between lines H and V. Crosses between line LP and the other lines had a negative heterosis for FS and PS. es_ES
dc.description.sponsorship This work was supported by the Spanish project AGL2011-30170 from the Spanish National Research Plan.
dc.language Inglés es_ES
dc.publisher American Society of Animal Science es_ES
dc.relation.ispartof Journal of Animal Science es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Crossbreeding components es_ES
dc.subject Litter size es_ES
dc.subject Maternal lines es_ES
dc.subject Ovulation rate es_ES
dc.subject Prenatal survival es_ES
dc.subject Rabbits es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Litter size components in a full diallel cross of four maternal lines of rabbits es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.2527/jas.2013-7286
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//AGL2011-30170/ 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.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Agrónomos - Escola Tècnica Superior d'Enginyers Agrònoms es_ES
dc.description.bibliographicCitation Mohamed Ragab, M.; Sánchez Serrano, JP.; Mínguez Balaguer, C.; Vicente Antón, JS.; Baselga Izquierdo, M. (2014). Litter size components in a full diallel cross of four maternal lines of rabbits. Journal of Animal Science. 92(8):3231-3236. https://doi.org/10.2527/jas.2013-7286 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.2527/jas.2013-7286 es_ES
dc.description.upvformatpinicio 3231 es_ES
dc.description.upvformatpfin 3236 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 92 es_ES
dc.description.issue 8 es_ES
dc.relation.senia 269059 es_ES
dc.identifier.eissn 1525-3163
dc.identifier.pmid 24893999
dc.contributor.funder Ministerio de Ciencia e Innovación


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