dc.creator | Perdomo-González, Davinia I. | es |
dc.creator | Molina, Antonio | es |
dc.creator | Sánchez Guerrero, María José | es |
dc.creator | Bartolomé, E. | es |
dc.creator | Varona, L. | es |
dc.creator | Valera Córdoba, Mercedes | es |
dc.date.accessioned | 2024-04-01T11:04:51Z | |
dc.date.available | 2024-04-01T11:04:51Z | |
dc.date.issued | 2021-10-29 | |
dc.identifier.citation | Perdomo-González, D.I., Molina, A., Sánchez Guerrero, M.J., Bartolomé, E., Varona, L. y Valera Córdoba, M. (2021). Genetic inbreeding depression load for fertility traits in Pura Raza Española mares. Journal of Animal Science, 99 (12), skab316. https://doi.org/10.1093/jas/skab316. | |
dc.identifier.issn | 0021-8812 | es |
dc.identifier.uri | https://hdl.handle.net/11441/156569 | |
dc.description.abstract | Fertility is a key factor in the economic success of horse farms. However, it has received little attention due to the difficulty
of measuring fertility objectively. Since its studbook creation (1912), the Pura Raza Española (PRE) breed has been a
closed population and become high in-bred resulting in inbreeding depression (poor phenotypic values). Nevertheless,
heterogeneous effects of inbreeding depression have been detected among founders and nonfounders. The aims of this
study were (1) to analyze the genetic parameters for reproductive traits in mares of the PRE horse breed and (2) to estimate,
for the first time, the inbreeding depression load associated with common ancestors of the breed. A total of 22,799 mares
were analyzed. Heritability estimates ranged from 0.05 (interval between first and second foaling) to 0.16 (age at first
foaling), whereas inbreeding depression load ratios ranged from 0.06 (parturition efficiency at 6th foaling) to 0.17 (age at
first foaling), for a partial inbreeding coefficient of 10%. Although heritability is related to the variability expressed in the
population, inbreeding depression load ratios measure the potential variability, whether expressed in the population or not.
Most correlations between additive and inbreeding depression load genetic values were significant (P < 0.001) and of low to
moderate magnitude. Our results confirm that individual inbreeding depression loads allow us to select horses that have a
genetic value resistant to the deleterious effects of inbreeding. | es |
dc.format | application/pdf | es |
dc.format.extent | 10 | es |
dc.language.iso | eng | es |
dc.publisher | Oxford University Press | es |
dc.relation.ispartof | Journal of Animal Science, 99 (12), skab316. | |
dc.rights | Atribución-CompartirIgual 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-sa/4.0/ | * |
dc.subject | fertility | es |
dc.subject | genetic parameters | es |
dc.subject | horses | es |
dc.subject | inbreeding depression | es |
dc.subject | inbreeding load heterogeneity | es |
dc.subject | reproductive efficiency | es |
dc.title | Genetic inbreeding depression load for fertility traits in Pura Raza Española mares | es |
dc.type | info:eu-repo/semantics/article | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Agronomía | es |
dc.identifier.doi | 10.1093/jas/skab316 | es |
dc.journaltitle | Journal of Animal Science | es |
dc.publication.volumen | 99 | es |
dc.publication.issue | 12 | es |
dc.publication.initialPage | skab316 | es |