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

[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 simp...

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Autores: Mohamed Ragab, Mohamed, Sánchez Serrano, Juan Pablo, Mínguez Balaguer, Carlos, Baselga Izquierdo, Manuel, Vicente Antón, José Salvador|||0000-0003-0481-3802
Formato: artículo
Fecha de publicación:2014
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/59993
Acesso em linha:https://riunet.upv.es/handle/10251/59993
Access Level:acceso abierto
Palavra-chave:Crossbreeding components
Litter size
Maternal lines
Ovulation rate
Prenatal survival
Rabbits
PRODUCCION ANIMAL
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repository_id_str
spelling Litter size components in a full diallel cross of four maternal lines of rabbitsMohamed Ragab, MohamedSánchez Serrano, Juan PabloMínguez Balaguer, CarlosBaselga Izquierdo, ManuelVicente Antón, José Salvador|||0000-0003-0481-3802Crossbreeding componentsLitter sizeMaternal linesOvulation ratePrenatal survivalRabbitsPRODUCCION ANIMAL[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.This work was supported by the Spanish project AGL2011-30170 from the Spanish National Research Plan.American Society of Animal ScienceDepartamento de Ciencia AnimalInstituto Universitario de Ciencia y Tecnología AnimalEscuela Técnica Superior de Ingeniería Agronómica y del Medio NaturalMinisterio de Ciencia e InnovaciónRepositorio Institucional de la Universitat Politècnica de València Riunet20142014-08-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/59993reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengMinisterio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 AGL2011-30170open accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/599932026-06-13T07:49:27Z
dc.title.none.fl_str_mv Litter size components in a full diallel cross of four maternal lines of rabbits
title Litter size components in a full diallel cross of four maternal lines of rabbits
spellingShingle Litter size components in a full diallel cross of four maternal lines of rabbits
Mohamed Ragab, Mohamed
Crossbreeding components
Litter size
Maternal lines
Ovulation rate
Prenatal survival
Rabbits
PRODUCCION ANIMAL
title_short Litter size components in a full diallel cross of four maternal lines of rabbits
title_full Litter size components in a full diallel cross of four maternal lines of rabbits
title_fullStr Litter size components in a full diallel cross of four maternal lines of rabbits
title_full_unstemmed Litter size components in a full diallel cross of four maternal lines of rabbits
title_sort Litter size components in a full diallel cross of four maternal lines of rabbits
dc.creator.none.fl_str_mv Mohamed Ragab, Mohamed
Sánchez Serrano, Juan Pablo
Mínguez Balaguer, Carlos
Baselga Izquierdo, Manuel
Vicente Antón, José Salvador|||0000-0003-0481-3802
author Mohamed Ragab, Mohamed
author_facet Mohamed Ragab, Mohamed
Sánchez Serrano, Juan Pablo
Mínguez Balaguer, Carlos
Baselga Izquierdo, Manuel
Vicente Antón, José Salvador|||0000-0003-0481-3802
author_role author
author2 Sánchez Serrano, Juan Pablo
Mínguez Balaguer, Carlos
Baselga Izquierdo, Manuel
Vicente Antón, José Salvador|||0000-0003-0481-3802
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ciencia Animal
Instituto Universitario de Ciencia y Tecnología Animal
Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural
Ministerio de Ciencia e Innovación
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Crossbreeding components
Litter size
Maternal lines
Ovulation rate
Prenatal survival
Rabbits
PRODUCCION ANIMAL
topic Crossbreeding components
Litter size
Maternal lines
Ovulation rate
Prenatal survival
Rabbits
PRODUCCION ANIMAL
description [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.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-08-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/59993
url https://riunet.upv.es/handle/10251/59993
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 AGL2011-30170
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Society of Animal Science
publisher.none.fl_str_mv American Society of Animal Science
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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