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Universidade de Brasília
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dc.contributor.authorFreitas, Mariane Leão-
dc.contributor.authorViana, João Henrique Moreira-
dc.contributor.authorDode, Margot Alves Nunes-
dc.contributor.authorMaggiotto, Selma Regina-
dc.contributor.authorPivato, Ivo-
dc.contributor.authorBraga, Thiago Rodrigues Cardoso-
dc.contributor.authorLim, Alexandre In Piao Gomes-
dc.contributor.authorOliveira, Rodrigo Arruda de-
dc.date.accessioned2023-10-06T20:58:53Z-
dc.date.available2023-10-06T20:58:53Z-
dc.date.issued2023-02-23-
dc.identifier.citationFREITAS, Mariane Leão et. al. Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes. Animal Reproduction Science, [s. l.], v. 250, 107202, 2023. DOI: https://doi.org/10.1016/j.anireprosci.2023.107202. Disponível em: https://www.sciencedirect.com/science/article/pii/S0378432023000167#sec0090. Acesso em: 06 out. 2023.pt_BR
dc.identifier.urihttp://repositorio.unb.br/handle/10482/46637-
dc.language.isoengpt_BR
dc.publisherElsevierpt_BR
dc.rightsAcesso Abertopt_BR
dc.titleSeasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudespt_BR
dc.typeArtigopt_BR
dc.subject.keywordReprodução animalpt_BR
dc.subject.keywordHormôniopt_BR
dc.subject.keywordCriopreservaçãopt_BR
dc.subject.keywordSêmen - criopreservaçãopt_BR
dc.subject.keywordVariação sazonalpt_BR
dc.rights.license© 2023 Elsevier B.V. All rights reserved.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.anireprosci.2023.107202pt_BR
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0378432023000167#sec0090pt_BR
dc.description.abstract1The effects of seasonality on the reproduction of stallions vary based on the latitude. Although previous studies have shown the influence of seasonality in raw semen quality in south-eastern Brazil, data regarding the influence of seasonality in cooled and frozen stored semen in Brazil is limited. Therefore, in this study, we have analysed if seasonality influences the hormone production (i.e., cortisol and testosterone), spermatogenesis, and quality of fresh, cooled, and frozen semen of stallions in central Brazil, and established the season most suitable for semen cryopreservation in a latitude of 15◦S. Ten stallions were followed-up for one year, which was divided into two seasons, namely, drought, and rainy. Fresh, cooled, and frozen-thawed semen samples were assessed using CASA and flow cytometry. Additionally, the temperature and humidity index (THI) was calculated to determine the thermal stress. Although the THI varied between the two seasons, no thermal stress was observed throughout the year, nor were there differences in the physiological parameters of the stallions or plasma cortisol or testosterone levels. Furthermore, differences were not detected in total and progressive motility, sperm capacitation, and sperm membrane integrity, as well as in the number of live sperm with intact acrosomes and high mitochondrial membrane potential, between the two seasons in the fresh and frozen-thawed semen. Our data suggest that semen can be effectively collected and cryopreserved throughout the year within central regions of Brazil.pt_BR
dc.contributor.emailrodrigoarruda@unb.brpt_BR
dc.contributor.affiliationUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproductionpt_BR
dc.contributor.affiliationBrazilian Agricultural Research Corporationpt_BR
dc.contributor.affiliationBrazilian Agricultural Research Corporationpt_BR
dc.contributor.affiliationUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproductionpt_BR
dc.contributor.affiliationUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproductionpt_BR
dc.contributor.affiliationUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproductionpt_BR
dc.contributor.affiliationUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproductionpt_BR
dc.contributor.affiliationUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproductionpt_BR
dc.description.unidadeFaculdade de Agronomia e Medicina Veterinária (FAV)pt_BR
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