Phenotypic and genetic analysis of reproductive traits in horse populations with different breeding purposes

Reproductive traits have a major influence on the economic effectiveness of horse breeding. However, there is little information available. We evaluated the use of reproductive traits as selection criteria in official breeding programs to increase the reproductive efficiency of breeding studs, analy...

Descripción completa

Detalles Bibliográficos
Autores: Gómez, María Dolores, Sánchez Guerrero, María José, Bartolomé Medina, Ester, Cervantes, Isabel, Poyato Bonilla, Julia, Demyda-Peyrás, Sebastián, Valera Córdoba, María Mercedes
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/165852
Acceso en línea:https://hdl.handle.net/11441/165852
https://doi.org/10.1017/S1751731120000087
Access Level:acceso abierto
Palabra clave:equine
heritability
pedigree
reproduction
selection
id ES_7c3eb0e45cff9c5af938c0de73d2e23d
oai_identifier_str oai:idus.us.es:11441/165852
network_acronym_str ES
network_name_str España
repository_id_str
spelling Phenotypic and genetic analysis of reproductive traits in horse populations with different breeding purposesGómez, María DoloresSánchez Guerrero, María JoséBartolomé Medina, EsterCervantes, IsabelPoyato Bonilla, JuliaDemyda-Peyrás, SebastiánValera Córdoba, María MercedesequineheritabilitypedigreereproductionselectionReproductive traits have a major influence on the economic effectiveness of horse breeding. However, there is little information available. We evaluated the use of reproductive traits as selection criteria in official breeding programs to increase the reproductive efficiency of breeding studs, analysing 696 690 records from the pedigree data of eight Spanish horse populations, with different breeding purposes. The reproductive parameters studied in both sexes were age at first foaling ( AFF), age at last foaling, average reproductive life and generational interval. In the females, the average interval between foaling ( AIF) and interval between first and second foaling were also studied. There were clear differences between sexes and breeds, which may be due to management practices, breeding purposes and the status of the populations, rather than to differences in actual physiological conditions. Riding mares were the most precocious (AFF, 1937.64 to 2255.69 days) and had a more intensive reproductive use (AIF, 625.83 to 760.07 days), whereas sires used for meat production were the most precocious males (AFF, 1789.93 to 1999.75 days), although they had a shorter reproductive life (1564.34 to 1797.32 days). Heritabilities (0.02 to 0.42 in females and 0.04 to 0.28 in males) evidenced the genetic component of the reproductive traits, with Sport Horses having the higher average values. These results support the selection by AFF to improve reproductive aspects because of its medium–high heritability and its positive correlations with other important reproductive traits. The inclusion of the AIF is also recommended in sport populations, because this determines the length of the breaks between foaling and conditions the reproductive performance of the dams, as well as their selective intensity, genetic gain and genetic improvement. It is therefore an important economic parameter in breeding studs.ElsevierAgronomía2020info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/165852https://doi.org/10.1017/S1751731120000087reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésAnimal, 14 (7), 1351-1361.info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1658522026-06-17T12:51:07Z
dc.title.none.fl_str_mv Phenotypic and genetic analysis of reproductive traits in horse populations with different breeding purposes
title Phenotypic and genetic analysis of reproductive traits in horse populations with different breeding purposes
spellingShingle Phenotypic and genetic analysis of reproductive traits in horse populations with different breeding purposes
Gómez, María Dolores
equine
heritability
pedigree
reproduction
selection
title_short Phenotypic and genetic analysis of reproductive traits in horse populations with different breeding purposes
title_full Phenotypic and genetic analysis of reproductive traits in horse populations with different breeding purposes
title_fullStr Phenotypic and genetic analysis of reproductive traits in horse populations with different breeding purposes
title_full_unstemmed Phenotypic and genetic analysis of reproductive traits in horse populations with different breeding purposes
title_sort Phenotypic and genetic analysis of reproductive traits in horse populations with different breeding purposes
dc.creator.none.fl_str_mv Gómez, María Dolores
Sánchez Guerrero, María José
Bartolomé Medina, Ester
Cervantes, Isabel
Poyato Bonilla, Julia
Demyda-Peyrás, Sebastián
Valera Córdoba, María Mercedes
author Gómez, María Dolores
author_facet Gómez, María Dolores
Sánchez Guerrero, María José
Bartolomé Medina, Ester
Cervantes, Isabel
Poyato Bonilla, Julia
Demyda-Peyrás, Sebastián
Valera Córdoba, María Mercedes
author_role author
author2 Sánchez Guerrero, María José
Bartolomé Medina, Ester
Cervantes, Isabel
Poyato Bonilla, Julia
Demyda-Peyrás, Sebastián
Valera Córdoba, María Mercedes
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Agronomía
dc.subject.none.fl_str_mv equine
heritability
pedigree
reproduction
selection
topic equine
heritability
pedigree
reproduction
selection
description Reproductive traits have a major influence on the economic effectiveness of horse breeding. However, there is little information available. We evaluated the use of reproductive traits as selection criteria in official breeding programs to increase the reproductive efficiency of breeding studs, analysing 696 690 records from the pedigree data of eight Spanish horse populations, with different breeding purposes. The reproductive parameters studied in both sexes were age at first foaling ( AFF), age at last foaling, average reproductive life and generational interval. In the females, the average interval between foaling ( AIF) and interval between first and second foaling were also studied. There were clear differences between sexes and breeds, which may be due to management practices, breeding purposes and the status of the populations, rather than to differences in actual physiological conditions. Riding mares were the most precocious (AFF, 1937.64 to 2255.69 days) and had a more intensive reproductive use (AIF, 625.83 to 760.07 days), whereas sires used for meat production were the most precocious males (AFF, 1789.93 to 1999.75 days), although they had a shorter reproductive life (1564.34 to 1797.32 days). Heritabilities (0.02 to 0.42 in females and 0.04 to 0.28 in males) evidenced the genetic component of the reproductive traits, with Sport Horses having the higher average values. These results support the selection by AFF to improve reproductive aspects because of its medium–high heritability and its positive correlations with other important reproductive traits. The inclusion of the AIF is also recommended in sport populations, because this determines the length of the breaks between foaling and conditions the reproductive performance of the dams, as well as their selective intensity, genetic gain and genetic improvement. It is therefore an important economic parameter in breeding studs.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/165852
https://doi.org/10.1017/S1751731120000087
url https://hdl.handle.net/11441/165852
https://doi.org/10.1017/S1751731120000087
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Animal, 14 (7), 1351-1361.
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411575890182144
score 15,811543

Similares en LA Referencia