Desarrollo folicular en ovejas durante el ciclo estral natural e inducido con prostaglandinas
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | spa |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/226172 |
Resumo: | The follicular development was evaluated in ovine females during natural and prostaglandin-F2α (PG) induced estrous cycle. Ewes were randomly divided in two treatments (n=7/treatment): T1 with natural cycle and T2 synchronized with two injections of PG. From one day before PG injection until next ovulation, daily transrectal ultrasonography was done. All follicles >2 mm were assessed. During the interovulatory intervals, follicular growth and regression occurred in a wave like pattern (2-3 waves). The maximum diameter of the largest follicle of the first wave was greater in T1 (5.83 ± 0.31 mm) compared with T2 (5.0 ±0.1 mm; P<0.01), but there was no significant difference among the emergency day of largest follicle, during the growth phase of the follicular waves. The duration of the plateau phase in wave 2 differed between the two treatments (P<0.05) showing 0.83 ± 0.31 and 1.83 ± 0.17 d, for natural and synchronized treatment, respectively. Growth rate did not differ between treatments. Presence of new luteal tissue was detected on day 3 after ovulation. In conclusion, the follicular development was similar in female ovine during natural and PG induced estrous cycle. |
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Desarrollo folicular en ovejas durante el ciclo estral natural e inducido con prostaglandinasFollicular development in ewes during natural and prostaglandins induced estrous cycleEstrousFolliclesProstaglandinsSynchronizationThe follicular development was evaluated in ovine females during natural and prostaglandin-F2α (PG) induced estrous cycle. Ewes were randomly divided in two treatments (n=7/treatment): T1 with natural cycle and T2 synchronized with two injections of PG. From one day before PG injection until next ovulation, daily transrectal ultrasonography was done. All follicles >2 mm were assessed. During the interovulatory intervals, follicular growth and regression occurred in a wave like pattern (2-3 waves). The maximum diameter of the largest follicle of the first wave was greater in T1 (5.83 ± 0.31 mm) compared with T2 (5.0 ±0.1 mm; P<0.01), but there was no significant difference among the emergency day of largest follicle, during the growth phase of the follicular waves. The duration of the plateau phase in wave 2 differed between the two treatments (P<0.05) showing 0.83 ± 0.31 and 1.83 ± 0.17 d, for natural and synchronized treatment, respectively. Growth rate did not differ between treatments. Presence of new luteal tissue was detected on day 3 after ovulation. In conclusion, the follicular development was similar in female ovine during natural and PG induced estrous cycle.Departamento de Salud Animal Universidad de Caldas, AA 275, Manizales, CaldasDepartamento de Reproducción, Animal y Radiología Veterinaria Universidad Estatal Paulista UNESP, Botucatu, Sao PauloDepartamento de Morfofisiología Universidad Federal de Mato Grosso do Sul UFMS, Campo Grande, Mato Grosso do Sul, MGUniversidad de Caldas, Manizales, CaldasDepartamento de Reproducción, Animal y Radiología Veterinaria Universidad Estatal Paulista UNESP, Botucatu, Sao PauloUniversidad de CaldasUniversidade Estadual Paulista (UNESP)Universidade Federal de Mato Grosso do Sul (UFMS)Uribe-Velásquez, Luis FernandoOba, Eunice [UNESP]Souza, Maria Inês LenzVélez-Marín, MiryamCorrea-Orozco, Adriana2022-04-28T21:50:32Z2022-04-28T21:50:32Z2010-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article417-421Revista Cientifica de la Facultad de Ciencias Veterinarias de la Universidad del Zulia, v. 20, n. 4, p. 417-421, 2010.0798-2259http://hdl.handle.net/11449/2261722-s2.0-78650632556Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPspaRevista Cientifica de la Facultad de Ciencias Veterinarias de la Universidad del Zuliainfo:eu-repo/semantics/openAccess2024-09-09T14:01:20Zoai:repositorio.unesp.br:11449/226172Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-09T14:01:20Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Desarrollo folicular en ovejas durante el ciclo estral natural e inducido con prostaglandinas Follicular development in ewes during natural and prostaglandins induced estrous cycle |
title |
Desarrollo folicular en ovejas durante el ciclo estral natural e inducido con prostaglandinas |
spellingShingle |
Desarrollo folicular en ovejas durante el ciclo estral natural e inducido con prostaglandinas Uribe-Velásquez, Luis Fernando Estrous Follicles Prostaglandins Synchronization |
title_short |
Desarrollo folicular en ovejas durante el ciclo estral natural e inducido con prostaglandinas |
title_full |
Desarrollo folicular en ovejas durante el ciclo estral natural e inducido con prostaglandinas |
title_fullStr |
Desarrollo folicular en ovejas durante el ciclo estral natural e inducido con prostaglandinas |
title_full_unstemmed |
Desarrollo folicular en ovejas durante el ciclo estral natural e inducido con prostaglandinas |
title_sort |
Desarrollo folicular en ovejas durante el ciclo estral natural e inducido con prostaglandinas |
author |
Uribe-Velásquez, Luis Fernando |
author_facet |
Uribe-Velásquez, Luis Fernando Oba, Eunice [UNESP] Souza, Maria Inês Lenz Vélez-Marín, Miryam Correa-Orozco, Adriana |
author_role |
author |
author2 |
Oba, Eunice [UNESP] Souza, Maria Inês Lenz Vélez-Marín, Miryam Correa-Orozco, Adriana |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidad de Caldas Universidade Estadual Paulista (UNESP) Universidade Federal de Mato Grosso do Sul (UFMS) |
dc.contributor.author.fl_str_mv |
Uribe-Velásquez, Luis Fernando Oba, Eunice [UNESP] Souza, Maria Inês Lenz Vélez-Marín, Miryam Correa-Orozco, Adriana |
dc.subject.por.fl_str_mv |
Estrous Follicles Prostaglandins Synchronization |
topic |
Estrous Follicles Prostaglandins Synchronization |
description |
The follicular development was evaluated in ovine females during natural and prostaglandin-F2α (PG) induced estrous cycle. Ewes were randomly divided in two treatments (n=7/treatment): T1 with natural cycle and T2 synchronized with two injections of PG. From one day before PG injection until next ovulation, daily transrectal ultrasonography was done. All follicles >2 mm were assessed. During the interovulatory intervals, follicular growth and regression occurred in a wave like pattern (2-3 waves). The maximum diameter of the largest follicle of the first wave was greater in T1 (5.83 ± 0.31 mm) compared with T2 (5.0 ±0.1 mm; P<0.01), but there was no significant difference among the emergency day of largest follicle, during the growth phase of the follicular waves. The duration of the plateau phase in wave 2 differed between the two treatments (P<0.05) showing 0.83 ± 0.31 and 1.83 ± 0.17 d, for natural and synchronized treatment, respectively. Growth rate did not differ between treatments. Presence of new luteal tissue was detected on day 3 after ovulation. In conclusion, the follicular development was similar in female ovine during natural and PG induced estrous cycle. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-12-01 2022-04-28T21:50:32Z 2022-04-28T21:50:32Z |
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 |
Revista Cientifica de la Facultad de Ciencias Veterinarias de la Universidad del Zulia, v. 20, n. 4, p. 417-421, 2010. 0798-2259 http://hdl.handle.net/11449/226172 2-s2.0-78650632556 |
identifier_str_mv |
Revista Cientifica de la Facultad de Ciencias Veterinarias de la Universidad del Zulia, v. 20, n. 4, p. 417-421, 2010. 0798-2259 2-s2.0-78650632556 |
url |
http://hdl.handle.net/11449/226172 |
dc.language.iso.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
Revista Cientifica de la Facultad de Ciencias Veterinarias de la Universidad del Zulia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
417-421 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
repositoriounesp@unesp.br |
_version_ |
1810021325265174528 |