102260 20230519145438.0 doi 10.3390/ani11040920 sideral 124061 ART-2021-124061 eng Barquero, V. Predictive capacity of boar sperm morphometry and morphometric sub-populations on reproductive success after artificial insemination 2021 Access copy available to the general public Unrestricted The aim of the study was to compare the morphometric features of sperm head size and shape from the Pietrain line and the Duroc × Pietrain boar crossbred terminal lines, and to evaluate their relationship with reproductive success after artificial insemination of sows produced from crossbreeding the York, Landrace and Pietrain breeds. Semen samples were collected from 11 sexually mature boars. Only ejaculates with greater than 70% motility rate and <15% of abnormal sperm were used for artificial inseminations (AI) and included in the study. Samples were analyzed using an ISAS®v1 computer-assisted sperm analysis system for eight morphometric parameters of head shape and size (CASA-Morph). Sub-populations of morphometric ejaculates were characterized using multivariate procedures, such as principal component (PC) analysis and clustering methods (k-means model). Four different ejaculate sub-populations were identified from two PCs that involved the head shape and size of the spermatozoa. The discriminant ability of the different morphometric sperm variables to predict sow litter size was analyzed using a receiver operating characteristics (ROC) curve analysis. Sperm head length, ellipticity, elongation, and regularity showed significant predictive capacity on litter size (0.59, 0.59, 0.60, and 0.56 area under curve (AUC), respectively). The morphometric sperm sub-populations were not related to sow litter size. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.231 2021 VETERINARY SCIENCES 16 / 145 = 0.11 2021 Q1 T1 AGRICULTURE, DAIRY & ANIMAL SCIENCE 13 / 63 = 0.206 2021 Q1 T1 0.61 2021 Veterinary (miscellaneous) 2021 Q1 Animal Science and Zoology 2021 Q1 2.7 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Roldan, E.R.S. Soler, C. Yániz, J.L. Universidad de Zaragoza (orcid)0000-0001-5316-1703 Camacho, M. Valverde, A. 2008 700 Universidad de Zaragoza Dpto. Produc.Animal Cienc.Ali. Área Producción Animal 11, 4 (2021), 920 [15 pp] Animals (Basel) Animals 2076-2615 997979 http://zaguan.unizar.es/record/102260/files/texto_completo.pdf Versión publicada 2601426 http://zaguan.unizar.es/record/102260/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:102260 articulos driver 2023-05-18-14:27:16 ARTICLE