The effect of progesterone length in timed AI in ewes
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s11250-022-03265-w http://hdl.handle.net/11449/241484 |
Resumo: | This study aimed to evaluate the reproductive performance of ewes submitted to timed AI protocol with 7 (D7) or 9 (D9) days of progesterone. A total of 220 crossbred ewes (Doper × Santa Ines) were distributed in the treatments according to body weight (52.67 ± 11.76 kg), body condition score (2.5 ± 0.8; scale of 1–5), and the female category (multiparous, nulliparous and primiparous). Ewes received an intravaginal device of 0.3 g of progesterone (CIDR® Easy breed) on day 0, keeping in ewes for 7 or 9 days, which were the experimental treatments. At the time of P4 withdrawal, ewes received 300 IU of eCG (Novormon®) and 6.70 mg of dinoprost tromethamine (Lutalyse®). Insemination by laparoscopy was performed between 46 and 59 h after device removal, lasting from 1 to 5 min/ewe, which did not differ between protocols. The estrus detection rate was higher in the 9-day protocol compared to the 7-day protocol (82% and 65%, respectively, P = 0.0096). However, the 7-day protocol tended to increase pregnancy rate on the TAI compared to the 9-day protocol (45% and 33%, respectively, P = 0.09). The plasma concentration of progesterone at device removal was higher in the 7-day protocol than in the 9-day protocol (2.35 and 1.22 ng/mL, respectively, P = 0.04). We conclude that reducing the length of the estrus synchronization protocol to 7 days is recommended, which improved the reproductive response in ewes. |
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The effect of progesterone length in timed AI in ewesEstrus synchronizationReproductive performanceTAI by laparoscopyThis study aimed to evaluate the reproductive performance of ewes submitted to timed AI protocol with 7 (D7) or 9 (D9) days of progesterone. A total of 220 crossbred ewes (Doper × Santa Ines) were distributed in the treatments according to body weight (52.67 ± 11.76 kg), body condition score (2.5 ± 0.8; scale of 1–5), and the female category (multiparous, nulliparous and primiparous). Ewes received an intravaginal device of 0.3 g of progesterone (CIDR® Easy breed) on day 0, keeping in ewes for 7 or 9 days, which were the experimental treatments. At the time of P4 withdrawal, ewes received 300 IU of eCG (Novormon®) and 6.70 mg of dinoprost tromethamine (Lutalyse®). Insemination by laparoscopy was performed between 46 and 59 h after device removal, lasting from 1 to 5 min/ewe, which did not differ between protocols. The estrus detection rate was higher in the 9-day protocol compared to the 7-day protocol (82% and 65%, respectively, P = 0.0096). However, the 7-day protocol tended to increase pregnancy rate on the TAI compared to the 9-day protocol (45% and 33%, respectively, P = 0.09). The plasma concentration of progesterone at device removal was higher in the 7-day protocol than in the 9-day protocol (2.35 and 1.22 ng/mL, respectively, P = 0.04). We conclude that reducing the length of the estrus synchronization protocol to 7 days is recommended, which improved the reproductive response in ewes.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado do AmazonasFaculdade de Ciências Agrárias Universidade Federal do Amazonas, AMDepartamento de Zootecnia Escola Superior de Agricultura Luiz de Queiroz Universidade de São Paulo, SPDepartamento de Cirurgia Veterinária e Reprodução Animal Faculdade de Medicina Veterinária e Zootecnia UNESP, SPFaculdade de Medicina Veterinária e Zootecnia Universidade de São Paulo, SPColegiado de Zootecnia Instituto de Ciências Sociais Educação e Zootecnia Universidade Federal do Amazonas, AMDepartamento de Cirurgia Veterinária e Reprodução Animal Faculdade de Medicina Veterinária e Zootecnia UNESP, SPUniversidade Federal do AmazonasUniversidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)Sinimbu, Amanda PimentelFerreira, Evandro MaiaDenadai, Renan [UNESP]Barroso, José Paulo RomanBiava, Janaina SocolovskiPires, Alexandre Vazde Castro Ferraz Junior, Marcos Vinicius2023-03-01T21:05:27Z2023-03-01T21:05:27Z2022-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s11250-022-03265-wTropical Animal Health and Production, v. 54, n. 5, 2022.1573-74380049-4747http://hdl.handle.net/11449/24148410.1007/s11250-022-03265-w2-s2.0-85135684217Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTropical Animal Health and Productioninfo:eu-repo/semantics/openAccess2024-09-09T14:01:31Zoai:repositorio.unesp.br:11449/241484Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-09T14:01:31Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The effect of progesterone length in timed AI in ewes |
title |
The effect of progesterone length in timed AI in ewes |
spellingShingle |
The effect of progesterone length in timed AI in ewes Sinimbu, Amanda Pimentel Estrus synchronization Reproductive performance TAI by laparoscopy |
title_short |
The effect of progesterone length in timed AI in ewes |
title_full |
The effect of progesterone length in timed AI in ewes |
title_fullStr |
The effect of progesterone length in timed AI in ewes |
title_full_unstemmed |
The effect of progesterone length in timed AI in ewes |
title_sort |
The effect of progesterone length in timed AI in ewes |
author |
Sinimbu, Amanda Pimentel |
author_facet |
Sinimbu, Amanda Pimentel Ferreira, Evandro Maia Denadai, Renan [UNESP] Barroso, José Paulo Roman Biava, Janaina Socolovski Pires, Alexandre Vaz de Castro Ferraz Junior, Marcos Vinicius |
author_role |
author |
author2 |
Ferreira, Evandro Maia Denadai, Renan [UNESP] Barroso, José Paulo Roman Biava, Janaina Socolovski Pires, Alexandre Vaz de Castro Ferraz Junior, Marcos Vinicius |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal do Amazonas Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Sinimbu, Amanda Pimentel Ferreira, Evandro Maia Denadai, Renan [UNESP] Barroso, José Paulo Roman Biava, Janaina Socolovski Pires, Alexandre Vaz de Castro Ferraz Junior, Marcos Vinicius |
dc.subject.por.fl_str_mv |
Estrus synchronization Reproductive performance TAI by laparoscopy |
topic |
Estrus synchronization Reproductive performance TAI by laparoscopy |
description |
This study aimed to evaluate the reproductive performance of ewes submitted to timed AI protocol with 7 (D7) or 9 (D9) days of progesterone. A total of 220 crossbred ewes (Doper × Santa Ines) were distributed in the treatments according to body weight (52.67 ± 11.76 kg), body condition score (2.5 ± 0.8; scale of 1–5), and the female category (multiparous, nulliparous and primiparous). Ewes received an intravaginal device of 0.3 g of progesterone (CIDR® Easy breed) on day 0, keeping in ewes for 7 or 9 days, which were the experimental treatments. At the time of P4 withdrawal, ewes received 300 IU of eCG (Novormon®) and 6.70 mg of dinoprost tromethamine (Lutalyse®). Insemination by laparoscopy was performed between 46 and 59 h after device removal, lasting from 1 to 5 min/ewe, which did not differ between protocols. The estrus detection rate was higher in the 9-day protocol compared to the 7-day protocol (82% and 65%, respectively, P = 0.0096). However, the 7-day protocol tended to increase pregnancy rate on the TAI compared to the 9-day protocol (45% and 33%, respectively, P = 0.09). The plasma concentration of progesterone at device removal was higher in the 7-day protocol than in the 9-day protocol (2.35 and 1.22 ng/mL, respectively, P = 0.04). We conclude that reducing the length of the estrus synchronization protocol to 7 days is recommended, which improved the reproductive response in ewes. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-10-01 2023-03-01T21:05:27Z 2023-03-01T21:05:27Z |
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/10.1007/s11250-022-03265-w Tropical Animal Health and Production, v. 54, n. 5, 2022. 1573-7438 0049-4747 http://hdl.handle.net/11449/241484 10.1007/s11250-022-03265-w 2-s2.0-85135684217 |
url |
http://dx.doi.org/10.1007/s11250-022-03265-w http://hdl.handle.net/11449/241484 |
identifier_str_mv |
Tropical Animal Health and Production, v. 54, n. 5, 2022. 1573-7438 0049-4747 10.1007/s11250-022-03265-w 2-s2.0-85135684217 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Tropical Animal Health and Production |
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 |
repositoriounesp@unesp.br |
_version_ |
1810021330723012608 |