PROTOCOLS OF ESTRUS INDUCTION AND SYNCHRONIZATION IN EWE
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência animal brasileira (Online) |
Texto Completo: | https://revistas.ufg.br/vet/article/view/13378 |
Resumo: | The objective of this study was to evaluate the effects of progestagen treatment of different duration, PGF2a and ram effect on estrus induction synchronization in ewes. In Experiment I, ewes (n=48) received vaginal sponges with MAP (medroxyprogesterone) for nine or 14 days (G-9 and G-14, respectively), followed by PGF2a treatment and estrus detection. There were no differences in estrus (69.6 and 80%), conception (50 and 55%), and pregnancy rates (34.8 e 44.0%) between G-9 and G-14, respectively. In Experiment II, ewes (n=151) were divided into three groups: G-6 received vaginal sponges with MAP for 6 days, followed by PGF2a treatment and estrus detection, G-PGF received only PGF2a treatment, and G-RF were only exposed to males after a period of separation. Estrus rates were greater (p<0.05) in G-6 and G-PGF groups (58 and 39%, respectively) than in G-EF group (11%). In conclusion, it was possible to reduce the duration of progestagen treatment; however, the use of PGF2a during the breeding season transition without progestagen seemed to reduce estrus rates. KEYWORDS: MAP; PGF2a; ram effect; Suffolk. |
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Ciência animal brasileira (Online) |
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PROTOCOLS OF ESTRUS INDUCTION AND SYNCHRONIZATION IN EWEPROTOCOLOS DE INDUÇÃO E SINCRONIZAÇÃO DO ESTRO EM OVELHASAnimal reproductionefeito machoMAPPGF2?SuffolkThe objective of this study was to evaluate the effects of progestagen treatment of different duration, PGF2a and ram effect on estrus induction synchronization in ewes. In Experiment I, ewes (n=48) received vaginal sponges with MAP (medroxyprogesterone) for nine or 14 days (G-9 and G-14, respectively), followed by PGF2a treatment and estrus detection. There were no differences in estrus (69.6 and 80%), conception (50 and 55%), and pregnancy rates (34.8 e 44.0%) between G-9 and G-14, respectively. In Experiment II, ewes (n=151) were divided into three groups: G-6 received vaginal sponges with MAP for 6 days, followed by PGF2a treatment and estrus detection, G-PGF received only PGF2a treatment, and G-RF were only exposed to males after a period of separation. Estrus rates were greater (p<0.05) in G-6 and G-PGF groups (58 and 39%, respectively) than in G-EF group (11%). In conclusion, it was possible to reduce the duration of progestagen treatment; however, the use of PGF2a during the breeding season transition without progestagen seemed to reduce estrus rates. KEYWORDS: MAP; PGF2a; ram effect; Suffolk.The objective of this study was to evaluate the effects of progestagen treatment of different duration, PGF2a and ram effect on estrus induction synchronization in ewes. In Experiment I, ewes (n=48) received vaginal sponges with MAP (medroxyprogesterone) for nine or 14 days (G-9 and G-14, respectively), followed by PGF2a treatment and estrus detection. There were no differences in estrus (69.6 and 80%), conception (50 and 55%), and pregnancy rates (34.8 e 44.0%) between G-9 and G-14, respectively. In Experiment II, ewes (n=151) were divided into three groups: G-6 received vaginal sponges with MAP for 6 days, followed by PGF2a treatment and estrus detection, G-PGF received only PGF2a treatment, and G-EM were only exposed to males after a period of separation. Estrus rates were greater (p<0.05) in G-6 and G-PGF groups (58 and 39%, respectively) than in G-EM group (11%). In conclusion, it was possible to reduce the duration of progestagen treatment; however, the use of PGF2a during the breeding season transition without progestagen seemed to reduce estrus rates. PALAVRAS-CHAVE: efeito macho; MAP; PGF2a; Suffolk.Universidade Federal de Goiás2013-03-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionresearchAvaliado por paresPesquisa Científicaapplication/pdftext/htmlhttps://revistas.ufg.br/vet/article/view/1337810.5216/cab.v14i1.13378Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 14 No. 1 (2013); 91-97Ciência Animal Brasileira / Brazilian Animal Science; v. 14 n. 1 (2013); 91-971809-68911518-2797reponame:Ciência animal brasileira (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/vet/article/view/13378/13725https://revistas.ufg.br/vet/article/view/13378/13726Castilho, Caliêde Almeida, Marcelo FerreiraCosta, Marcelo ZoccolaroDe Cesare, Ângelo GardimGabriel Filho, Luis Roberto de A.info:eu-repo/semantics/openAccess2013-04-03T11:54:30Zoai:ojs.revistas.ufg.br:article/13378Revistahttps://revistas.ufg.br/vetPUBhttps://revistas.ufg.br/vet/oai||revistacab@gmail.com1809-68911518-2797opendoar:2024-05-21T19:55:46.713692Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
PROTOCOLS OF ESTRUS INDUCTION AND SYNCHRONIZATION IN EWE PROTOCOLOS DE INDUÇÃO E SINCRONIZAÇÃO DO ESTRO EM OVELHAS |
title |
PROTOCOLS OF ESTRUS INDUCTION AND SYNCHRONIZATION IN EWE |
spellingShingle |
PROTOCOLS OF ESTRUS INDUCTION AND SYNCHRONIZATION IN EWE Castilho, Caliê Animal reproduction efeito macho MAP PGF2? Suffolk |
title_short |
PROTOCOLS OF ESTRUS INDUCTION AND SYNCHRONIZATION IN EWE |
title_full |
PROTOCOLS OF ESTRUS INDUCTION AND SYNCHRONIZATION IN EWE |
title_fullStr |
PROTOCOLS OF ESTRUS INDUCTION AND SYNCHRONIZATION IN EWE |
title_full_unstemmed |
PROTOCOLS OF ESTRUS INDUCTION AND SYNCHRONIZATION IN EWE |
title_sort |
PROTOCOLS OF ESTRUS INDUCTION AND SYNCHRONIZATION IN EWE |
author |
Castilho, Caliê |
author_facet |
Castilho, Caliê de Almeida, Marcelo Ferreira Costa, Marcelo Zoccolaro De Cesare, Ângelo Gardim Gabriel Filho, Luis Roberto de A. |
author_role |
author |
author2 |
de Almeida, Marcelo Ferreira Costa, Marcelo Zoccolaro De Cesare, Ângelo Gardim Gabriel Filho, Luis Roberto de A. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Castilho, Caliê de Almeida, Marcelo Ferreira Costa, Marcelo Zoccolaro De Cesare, Ângelo Gardim Gabriel Filho, Luis Roberto de A. |
dc.subject.por.fl_str_mv |
Animal reproduction efeito macho MAP PGF2? Suffolk |
topic |
Animal reproduction efeito macho MAP PGF2? Suffolk |
description |
The objective of this study was to evaluate the effects of progestagen treatment of different duration, PGF2a and ram effect on estrus induction synchronization in ewes. In Experiment I, ewes (n=48) received vaginal sponges with MAP (medroxyprogesterone) for nine or 14 days (G-9 and G-14, respectively), followed by PGF2a treatment and estrus detection. There were no differences in estrus (69.6 and 80%), conception (50 and 55%), and pregnancy rates (34.8 e 44.0%) between G-9 and G-14, respectively. In Experiment II, ewes (n=151) were divided into three groups: G-6 received vaginal sponges with MAP for 6 days, followed by PGF2a treatment and estrus detection, G-PGF received only PGF2a treatment, and G-RF were only exposed to males after a period of separation. Estrus rates were greater (p<0.05) in G-6 and G-PGF groups (58 and 39%, respectively) than in G-EF group (11%). In conclusion, it was possible to reduce the duration of progestagen treatment; however, the use of PGF2a during the breeding season transition without progestagen seemed to reduce estrus rates. KEYWORDS: MAP; PGF2a; ram effect; Suffolk. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-03-26 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research Avaliado por pares Pesquisa Científica |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/vet/article/view/13378 10.5216/cab.v14i1.13378 |
url |
https://revistas.ufg.br/vet/article/view/13378 |
identifier_str_mv |
10.5216/cab.v14i1.13378 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/vet/article/view/13378/13725 https://revistas.ufg.br/vet/article/view/13378/13726 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 14 No. 1 (2013); 91-97 Ciência Animal Brasileira / Brazilian Animal Science; v. 14 n. 1 (2013); 91-97 1809-6891 1518-2797 reponame:Ciência animal brasileira (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Ciência animal brasileira (Online) |
collection |
Ciência animal brasileira (Online) |
repository.name.fl_str_mv |
Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
||revistacab@gmail.com |
_version_ |
1799874787112124416 |