Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes

Detalhes bibliográficos
Autor(a) principal: Freitas, Mariane Leão
Data de Publicação: 2023
Outros Autores: Viana, João Henrique Moreira, Dode, Margot Alves Nunes, Maggiotto, Selma Regina, Pivato, Ivo, Braga, Thiago Rodrigues Cardoso, Lim, Alexandre In Piao Gomes, Oliveira, Rodrigo Arruda de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UnB
Texto Completo: http://repositorio2.unb.br/jspui/handle/10482/46637
https://doi.org/10.1016/j.anireprosci.2023.107202
Resumo: The 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.
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spelling Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudesReprodução animalHormônioCriopreservaçãoSêmen - criopreservaçãoVariação sazonalThe 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.Faculdade de Agronomia e Medicina Veterinária (FAV)Elsevierrodrigoarruda@unb.brUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal ReproductionBrazilian Agricultural Research CorporationBrazilian Agricultural Research CorporationUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal ReproductionUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal ReproductionUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal ReproductionUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal ReproductionUniversity of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal ReproductionFreitas, Mariane LeãoViana, João Henrique MoreiraDode, Margot Alves NunesMaggiotto, Selma ReginaPivato, IvoBraga, Thiago Rodrigues CardosoLim, Alexandre In Piao GomesOliveira, Rodrigo Arruda de2023-10-06T20:58:53Z2023-10-06T20:58:53Z2023-02-23info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleFREITAS, 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.http://repositorio2.unb.br/jspui/handle/10482/46637https://doi.org/10.1016/j.anireprosci.2023.107202enghttps://www.sciencedirect.com/science/article/pii/S0378432023000167#sec0090© 2023 Elsevier B.V. All rights reserved.info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UnBinstname:Universidade de Brasília (UnB)instacron:UNB2023-12-12T19:33:30Zoai:repositorio.unb.br:10482/46637Repositório InstitucionalPUBhttps://repositorio.unb.br/oai/requestrepositorio@unb.bropendoar:2023-12-12T19:33:30Repositório Institucional da UnB - Universidade de Brasília (UnB)false
dc.title.none.fl_str_mv Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes
title Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes
spellingShingle Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes
Freitas, Mariane Leão
Reprodução animal
Hormônio
Criopreservação
Sêmen - criopreservação
Variação sazonal
title_short Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes
title_full Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes
title_fullStr Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes
title_full_unstemmed Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes
title_sort Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes
author Freitas, Mariane Leão
author_facet Freitas, Mariane Leão
Viana, João Henrique Moreira
Dode, Margot Alves Nunes
Maggiotto, Selma Regina
Pivato, Ivo
Braga, Thiago Rodrigues Cardoso
Lim, Alexandre In Piao Gomes
Oliveira, Rodrigo Arruda de
author_role author
author2 Viana, João Henrique Moreira
Dode, Margot Alves Nunes
Maggiotto, Selma Regina
Pivato, Ivo
Braga, Thiago Rodrigues Cardoso
Lim, Alexandre In Piao Gomes
Oliveira, Rodrigo Arruda de
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv rodrigoarruda@unb.br
University of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproduction
Brazilian Agricultural Research Corporation
Brazilian Agricultural Research Corporation
University of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproduction
University of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproduction
University of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproduction
University of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproduction
University of Brasília, Faculty of Veterinary Medicine, Laboratory of Animal Reproduction
dc.contributor.author.fl_str_mv Freitas, Mariane Leão
Viana, João Henrique Moreira
Dode, Margot Alves Nunes
Maggiotto, Selma Regina
Pivato, Ivo
Braga, Thiago Rodrigues Cardoso
Lim, Alexandre In Piao Gomes
Oliveira, Rodrigo Arruda de
dc.subject.por.fl_str_mv Reprodução animal
Hormônio
Criopreservação
Sêmen - criopreservação
Variação sazonal
topic Reprodução animal
Hormônio
Criopreservação
Sêmen - criopreservação
Variação sazonal
description The 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.
publishDate 2023
dc.date.none.fl_str_mv 2023-10-06T20:58:53Z
2023-10-06T20:58:53Z
2023-02-23
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv FREITAS, 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.
http://repositorio2.unb.br/jspui/handle/10482/46637
https://doi.org/10.1016/j.anireprosci.2023.107202
identifier_str_mv FREITAS, 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.
url http://repositorio2.unb.br/jspui/handle/10482/46637
https://doi.org/10.1016/j.anireprosci.2023.107202
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.sciencedirect.com/science/article/pii/S0378432023000167#sec0090
dc.rights.driver.fl_str_mv © 2023 Elsevier B.V. All rights reserved.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © 2023 Elsevier B.V. All rights reserved.
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Institucional da UnB
instname:Universidade de Brasília (UnB)
instacron:UNB
instname_str Universidade de Brasília (UnB)
instacron_str UNB
institution UNB
reponame_str Repositório Institucional da UnB
collection Repositório Institucional da UnB
repository.name.fl_str_mv Repositório Institucional da UnB - Universidade de Brasília (UnB)
repository.mail.fl_str_mv repositorio@unb.br
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