95769 20210902121734.0 doi 10.3390/ani10091628 sideral 120206 ART-2020-120206 eng Abecia, J.A. Universidad de Zaragoza (orcid)0000-0003-2827-3054 Semen quality of rasa aragonesa rams carrying the fecxr allele of the BMP15 gene 2020 Access copy available to the general public Unrestricted The FecXR mutation is a variant of the ovine gene BMP15 in the Rasa Aragonesa breed. Information on the physiological importance of carrying the FecX polymorphism in rams is limited. The aim of this study was to compare semen quality, testicle characteristics, and fertility rate of rams that carry the FecXR allele. Rams (n = 15) were either FecXR allele carriers (n = 10) or non-carriers, wild type (++) (n = 5). FecXR rams exhibited higher mass motility (p < 0.05), proportion of rapid sperm (p < 0.05), and a lower proportion of slow sperm (p < 0.0001) than did ++ rams. The presence of the FecXR allele was not associated with mean scrotal circumference or testicular length and diameter, although season had a significant (p < 0.05) effect on these traits. Genotype (p < 0.05) and season (p < 0.01) had a significant effect on mean fertility rate, FecXR rams had a higher proportion of pregnant ewes than did ++ rams (p < 0.05). In conclusion, the FecXR allele produced high-quality semen throughout the year, and corresponded with an improvement in some sperm parameters, particularly, mass motility and the proportion of rapid sperm. info:eu-repo/grantAgreement/ES/DGA/A07-20R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.752 2020 VETERINARY SCIENCES 19 / 146 = 0.13 2020 Q1 T1 AGRICULTURE, DAIRY & ANIMAL SCIENCE 13 / 63 = 0.206 2020 Q1 T1 0.583 2020 Veterinary (miscellaneous) 2020 Q1 Animal Science and Zoology 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Macías, Á. Casao, A. Universidad de Zaragoza (orcid)0000-0003-1997-4262 Burillo, C. Martín, E. Pérez-Pé, R. Universidad de Zaragoza (orcid)0000-0002-2312-6402 Laviña, A. 1002 819 Universidad de Zaragoza Dpto. Bioq.Biolog.Mol. Celular Área Zoología 2008 700 Universidad de Zaragoza Dpto. Produc.Animal Cienc.Ali. Área Producción Animal 10, 9 (2020), 1628 [1-9] Animals (Basel) Animals 2076-2615 407696 http://zaguan.unizar.es/record/95769/files/texto_completo.pdf Versión publicada 505347 http://zaguan.unizar.es/record/95769/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:95769 articulos driver 2021-09-02-09:37:47 ARTICLE