Seasonality does not influence cortisol or testosterone production, or seminal quality of stallions located at low latitudes
Autor(a) principal: | |
---|---|
Data de Publicação: | 2023 |
Outros Autores: | , , , , , , |
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. |
id |
UNB_1070e12a47f7c87aa5254f00866bc810 |
---|---|
oai_identifier_str |
oai:repositorio.unb.br:10482/46637 |
network_acronym_str |
UNB |
network_name_str |
Repositório Institucional da UnB |
repository_id_str |
|
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 |
_version_ |
1814508167095123968 |