Comparative Efficacy of Histrelin Acetate and hCG for Inducing Ovulation in Brazilian Northeastern Jennies (Equus africanus asinus)
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jevs.2020.103146 http://hdl.handle.net/11449/201946 |
Resumo: | The goal of this study was to compare the efficiency of histrelin acetate (GnRH analog) and human chorionic gonadotropin (hCG) to hasten ovulation in Brazilian Northeastern jennies (Equus africanus asinus). Thirty cycles of ten jennies were randomly assigned in one of the three groups: G0 (control group), saline; G1, 250 μg of histrelin acetate; G2, 2500 IU of hCG. Jennies were evaluated by transrectal palpation and ultrasonography, and had the administration of an ovulation-inducing agent when a follicle measuring between 29 and 32 mm of diameter was diagnosed. Jennies were monitored every 6 hours by transrectal ultrasonography until ovulation. The interval between prostaglandin administration and ovulation was lower (P < .05) in jennies from the G1 (145.2 ± 34.6 hours) and G2 (147.4 ± 27.3 hours) groups compared with the control cycle (220.0 ± 41.8 hours). Both treatments (G1, 41.15 ± 3.5 hours; G2, 37.8 ± 2.5 hours) also reduced (P < .05) the interval that jennies took to ovulate after the administration of the ovulation-inducing agent compared with the control (81.8 ± 28.8 hours). All jennies from G1 and G2 ovulated up to 48 hours after ovulation induction, whereas 100% of jennies in the control cycle ovulated later (>48 hours from the administration of saline). In conclusion, both histrelin acetate and hCG at the used dose are efficient ovulation-inducing agents in jennies promoting ovulation up to 48 hours after administration. |
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Repositório Institucional da UNESP |
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Comparative Efficacy of Histrelin Acetate and hCG for Inducing Ovulation in Brazilian Northeastern Jennies (Equus africanus asinus)DonkeysEstrous cycleGnRH analogReproductionThe goal of this study was to compare the efficiency of histrelin acetate (GnRH analog) and human chorionic gonadotropin (hCG) to hasten ovulation in Brazilian Northeastern jennies (Equus africanus asinus). Thirty cycles of ten jennies were randomly assigned in one of the three groups: G0 (control group), saline; G1, 250 μg of histrelin acetate; G2, 2500 IU of hCG. Jennies were evaluated by transrectal palpation and ultrasonography, and had the administration of an ovulation-inducing agent when a follicle measuring between 29 and 32 mm of diameter was diagnosed. Jennies were monitored every 6 hours by transrectal ultrasonography until ovulation. The interval between prostaglandin administration and ovulation was lower (P < .05) in jennies from the G1 (145.2 ± 34.6 hours) and G2 (147.4 ± 27.3 hours) groups compared with the control cycle (220.0 ± 41.8 hours). Both treatments (G1, 41.15 ± 3.5 hours; G2, 37.8 ± 2.5 hours) also reduced (P < .05) the interval that jennies took to ovulate after the administration of the ovulation-inducing agent compared with the control (81.8 ± 28.8 hours). All jennies from G1 and G2 ovulated up to 48 hours after ovulation induction, whereas 100% of jennies in the control cycle ovulated later (>48 hours from the administration of saline). In conclusion, both histrelin acetate and hCG at the used dose are efficient ovulation-inducing agents in jennies promoting ovulation up to 48 hours after administration.Sao Paulo State University (Unesp) School of Veterinary Medicine and Animal ScienceCaxias do Sul UniversitySao Paulo State University (Unesp) School of Veterinary Medicine and Animal ScienceUniversidade Estadual Paulista (Unesp)Caxias do Sul UniversityOliveira, Sidnei N. [UNESP]Segabinazzi, Lorenzo G.T.M. [UNESP]Canuto, Lucas [UNESP]Lisboa, Fernando P.Medrado, Felipe E. [UNESP]Dell'Aqua, Jose A. [UNESP]Aguiar, Antonio J.A. [UNESP]Papa, Frederico O. [UNESP]2020-12-12T02:45:56Z2020-12-12T02:45:56Z2020-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jevs.2020.103146Journal of Equine Veterinary Science, v. 92.0737-0806http://hdl.handle.net/11449/20194610.1016/j.jevs.2020.1031462-s2.0-85087734098Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Equine Veterinary Scienceinfo:eu-repo/semantics/openAccess2021-10-23T03:21:14Zoai:repositorio.unesp.br:11449/201946Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T03:21:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Comparative Efficacy of Histrelin Acetate and hCG for Inducing Ovulation in Brazilian Northeastern Jennies (Equus africanus asinus) |
title |
Comparative Efficacy of Histrelin Acetate and hCG for Inducing Ovulation in Brazilian Northeastern Jennies (Equus africanus asinus) |
spellingShingle |
Comparative Efficacy of Histrelin Acetate and hCG for Inducing Ovulation in Brazilian Northeastern Jennies (Equus africanus asinus) Oliveira, Sidnei N. [UNESP] Donkeys Estrous cycle GnRH analog Reproduction |
title_short |
Comparative Efficacy of Histrelin Acetate and hCG for Inducing Ovulation in Brazilian Northeastern Jennies (Equus africanus asinus) |
title_full |
Comparative Efficacy of Histrelin Acetate and hCG for Inducing Ovulation in Brazilian Northeastern Jennies (Equus africanus asinus) |
title_fullStr |
Comparative Efficacy of Histrelin Acetate and hCG for Inducing Ovulation in Brazilian Northeastern Jennies (Equus africanus asinus) |
title_full_unstemmed |
Comparative Efficacy of Histrelin Acetate and hCG for Inducing Ovulation in Brazilian Northeastern Jennies (Equus africanus asinus) |
title_sort |
Comparative Efficacy of Histrelin Acetate and hCG for Inducing Ovulation in Brazilian Northeastern Jennies (Equus africanus asinus) |
author |
Oliveira, Sidnei N. [UNESP] |
author_facet |
Oliveira, Sidnei N. [UNESP] Segabinazzi, Lorenzo G.T.M. [UNESP] Canuto, Lucas [UNESP] Lisboa, Fernando P. Medrado, Felipe E. [UNESP] Dell'Aqua, Jose A. [UNESP] Aguiar, Antonio J.A. [UNESP] Papa, Frederico O. [UNESP] |
author_role |
author |
author2 |
Segabinazzi, Lorenzo G.T.M. [UNESP] Canuto, Lucas [UNESP] Lisboa, Fernando P. Medrado, Felipe E. [UNESP] Dell'Aqua, Jose A. [UNESP] Aguiar, Antonio J.A. [UNESP] Papa, Frederico O. [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Caxias do Sul University |
dc.contributor.author.fl_str_mv |
Oliveira, Sidnei N. [UNESP] Segabinazzi, Lorenzo G.T.M. [UNESP] Canuto, Lucas [UNESP] Lisboa, Fernando P. Medrado, Felipe E. [UNESP] Dell'Aqua, Jose A. [UNESP] Aguiar, Antonio J.A. [UNESP] Papa, Frederico O. [UNESP] |
dc.subject.por.fl_str_mv |
Donkeys Estrous cycle GnRH analog Reproduction |
topic |
Donkeys Estrous cycle GnRH analog Reproduction |
description |
The goal of this study was to compare the efficiency of histrelin acetate (GnRH analog) and human chorionic gonadotropin (hCG) to hasten ovulation in Brazilian Northeastern jennies (Equus africanus asinus). Thirty cycles of ten jennies were randomly assigned in one of the three groups: G0 (control group), saline; G1, 250 μg of histrelin acetate; G2, 2500 IU of hCG. Jennies were evaluated by transrectal palpation and ultrasonography, and had the administration of an ovulation-inducing agent when a follicle measuring between 29 and 32 mm of diameter was diagnosed. Jennies were monitored every 6 hours by transrectal ultrasonography until ovulation. The interval between prostaglandin administration and ovulation was lower (P < .05) in jennies from the G1 (145.2 ± 34.6 hours) and G2 (147.4 ± 27.3 hours) groups compared with the control cycle (220.0 ± 41.8 hours). Both treatments (G1, 41.15 ± 3.5 hours; G2, 37.8 ± 2.5 hours) also reduced (P < .05) the interval that jennies took to ovulate after the administration of the ovulation-inducing agent compared with the control (81.8 ± 28.8 hours). All jennies from G1 and G2 ovulated up to 48 hours after ovulation induction, whereas 100% of jennies in the control cycle ovulated later (>48 hours from the administration of saline). In conclusion, both histrelin acetate and hCG at the used dose are efficient ovulation-inducing agents in jennies promoting ovulation up to 48 hours after administration. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:45:56Z 2020-12-12T02:45:56Z 2020-09-01 |
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 |
http://dx.doi.org/10.1016/j.jevs.2020.103146 Journal of Equine Veterinary Science, v. 92. 0737-0806 http://hdl.handle.net/11449/201946 10.1016/j.jevs.2020.103146 2-s2.0-85087734098 |
url |
http://dx.doi.org/10.1016/j.jevs.2020.103146 http://hdl.handle.net/11449/201946 |
identifier_str_mv |
Journal of Equine Veterinary Science, v. 92. 0737-0806 10.1016/j.jevs.2020.103146 2-s2.0-85087734098 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Equine Veterinary Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
|
_version_ |
1799965551699689472 |