000112475 001__ 112475
000112475 005__ 20230519145433.0
000112475 0247_ $$2doi$$a10.1093/jas/skab316
000112475 0248_ $$2sideral$$a127516
000112475 037__ $$aART-2021-127516
000112475 041__ $$aeng
000112475 100__ $$aPerdomo-González, D.I.
000112475 245__ $$aGenetic inbreeding depression load for fertility traits in Pura Raza Española mares
000112475 260__ $$c2021
000112475 5060_ $$aAccess copy available to the general public$$fUnrestricted
000112475 5203_ $$aFertility 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. © The Author(s) 2021. Published by Oxford University Press on behalf of the American Society of Animal Science.
000112475 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/AGL2017-84217-P
000112475 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000112475 590__ $$a3.338$$b2021
000112475 592__ $$a0.854$$b2021
000112475 594__ $$a4.7$$b2021
000112475 591__ $$aAGRICULTURE, DAIRY & ANIMAL SCIENCE$$b10 / 63 = 0.159$$c2021$$dQ1$$eT1
000112475 593__ $$aAnimal Science and Zoology$$c2021$$dQ1
000112475 593__ $$aMedicine (miscellaneous)$$c2021$$dQ1
000112475 593__ $$aFood Science$$c2021$$dQ1
000112475 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000112475 700__ $$aMolina, A.
000112475 700__ $$aSánchez-Guerrero, M.J.
000112475 700__ $$aBartolomé, E.
000112475 700__ $$0(orcid)0000-0001-6256-5478$$aVarona, L.$$uUniversidad de Zaragoza
000112475 700__ $$aValera, M.
000112475 7102_ $$11001$$2420$$aUniversidad de Zaragoza$$bDpto. Anatom.,Embri.Genét.Ani.$$cÁrea Genética
000112475 773__ $$g99, 12 (2021), skab316 [10 pp.]$$pJ. anim. sci.$$tJournal of Animal Science$$x0021-8812
000112475 8564_ $$s15861373$$uhttps://zaguan.unizar.es/record/112475/files/texto_completo.pdf$$yVersión publicada
000112475 8564_ $$s2687189$$uhttps://zaguan.unizar.es/record/112475/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000112475 909CO $$ooai:zaguan.unizar.es:112475$$particulos$$pdriver
000112475 951__ $$a2023-05-18-14:20:24
000112475 980__ $$aARTICLE