000099740 001__ 99740 000099740 005__ 20230519145508.0 000099740 0247_ $$2doi$$a10.3390/ani11020465 000099740 0248_ $$2sideral$$a123239 000099740 037__ $$aART-2021-123239 000099740 041__ $$aeng 000099740 100__ $$0(orcid)0000-0003-0770-9250$$aAusejo, R.$$uUniversidad de Zaragoza 000099740 245__ $$aSeasonal changes of nuclear DNA fragmentation in boar spermatozoa in Spain 000099740 260__ $$c2021 000099740 5060_ $$aAccess copy available to the general public$$fUnrestricted 000099740 5203_ $$aThere are numerous cases when conventional spermiogram parameters are all within an acceptable range but boar subfertility persists. The total sperm nuclear DNA fragmentation index (tDFI) is a trait related to fertility and prolificacy problems that is not routinely evaluated in commercial AI boars. The aim of this research was to study the effect of the photoperiod, season and reproductive age of the boar on tDFI (measured by SCSA) of 1279 ejaculates from 372 different boars belonging to 6 different breeds located in 6 AI studs in Spain. tDFI data ranged from 0.018% to 20.1%. Although there was a significant single boar effect in the tDFI occurrence, a negative correlation between the tDFI and the age of the boar was found (p < 0.001). tDFI would decrease due to aging of the boar 0.66% each year old within the observed age range. After including age as a covariate in the ANCOVA, no differences were found in tDFI between photoperiods when the sperm collection date was evaluated. However, when the date of the production of semen in the testis was evaluated, the total percentage of spermatozoa with fragmented nuclear DNA was 1.46% higher in the increasing photoperiod in comparison to the decreasing photoperiod (p < 0.0001). On the other hand, for both dates, the lowest tDFI values corresponded to minimum day length for decreasing photoperiod phase (autumn), while the highest tDFI values were found in summer (maximum day length for decreasing photoperiod phase). 000099740 536__ $$9info:eu-repo/grantAgreement/ES/UZ/III convocatoria de ayudas para el Desarrollo del programa de doctorados industriales-empresariales 000099740 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000099740 590__ $$a3.231$$b2021 000099740 592__ $$a0.61$$b2021 000099740 594__ $$a2.7$$b2021 000099740 591__ $$aVETERINARY SCIENCES$$b16 / 145 = 0.11$$c2021$$dQ1$$eT1 000099740 593__ $$aVeterinary (miscellaneous)$$c2021$$dQ1 000099740 591__ $$aAGRICULTURE, DAIRY & ANIMAL SCIENCE$$b13 / 63 = 0.206$$c2021$$dQ1$$eT1 000099740 593__ $$aAnimal Science and Zoology$$c2021$$dQ1 000099740 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000099740 700__ $$0(orcid)0000-0002-8852-9229$$aMartínez, J.M.$$uUniversidad de Zaragoza 000099740 700__ $$0(orcid)0000-0002-7758-3334$$aSoler-llorens, P. 000099740 700__ $$0(orcid)0000-0002-8498-4427$$aBolarín, A.$$uUniversidad de Zaragoza 000099740 700__ $$0(orcid)0000-0001-5026-5144$$aTejedor, T.$$uUniversidad de Zaragoza 000099740 700__ $$0(orcid)0000-0001-6964-7011$$aFalceto, M.V.$$uUniversidad de Zaragoza 000099740 7102_ $$11001$$2420$$aUniversidad de Zaragoza$$bDpto. Anatom.,Embri.Genét.Ani.$$cÁrea Genética 000099740 7102_ $$11009$$2617$$aUniversidad de Zaragoza$$bDpto. Patología Animal$$cÁrea Medicina y Cirugía Animal 000099740 7102_ $$12008$$2780$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Tecnología de Alimentos 000099740 773__ $$g11, 2 (2021), 465 [13 pp]$$pAnimals (Basel)$$tAnimals$$x2076-2615 000099740 8564_ $$s502991$$uhttps://zaguan.unizar.es/record/99740/files/texto_completo.pdf$$yVersión publicada 000099740 8564_ $$s2553235$$uhttps://zaguan.unizar.es/record/99740/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000099740 909CO $$ooai:zaguan.unizar.es:99740$$particulos$$pdriver 000099740 951__ $$a2023-05-18-15:07:49 000099740 980__ $$aARTICLE