Estrous synchronization in sheep with reused progesterone devices and eCG
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Zootecnia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982021000100700 |
Resumo: | ABSTRACT The objective of the present research was to determine the effect of long synchronization protocols based on reused progesterone devices (controlled internal drug release [CIDR]) associated with different doses of equine chorionic gonadotropin (eCG) on reproductive variables in crossbred sheep (Suffolk × Kathadin × Dorset). The CIDR were used for eleven days in a previous study in sheep from the same herd and were washed and disinfected before reusing. Sixty-four sheep, in the reproductive season, were randomly assigned to four experimental groups (n = 16). Treatments consisted of a group with 10 d CIDR and 300 IU eCG; a group with 10 d CIDR and 400 IU of eCG; a group with 12 d CIDR and 300 IU of eCG; and a group with 12 d CIDR and 400 IU of eCG. A completely randomized design was used. There was an estrous presentation rate of 100% in all treatments. The begining of estrous, gestation rate, fertility rate, type of parturition, and prolificacy index were equal between groups. Progesterone serum concentration was higher in sheep from the 10 d CIDR groups. The CIDR, reused for the second time, associated with 300 or 400 IU of eCG for estrous synchronization in sheep, are effective to obtain good pregnancy rates and ensures higher prolificacy rates. |
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Estrous synchronization in sheep with reused progesterone devices and eCGCIDR reutilizationovinereproductive efficiencyABSTRACT The objective of the present research was to determine the effect of long synchronization protocols based on reused progesterone devices (controlled internal drug release [CIDR]) associated with different doses of equine chorionic gonadotropin (eCG) on reproductive variables in crossbred sheep (Suffolk × Kathadin × Dorset). The CIDR were used for eleven days in a previous study in sheep from the same herd and were washed and disinfected before reusing. Sixty-four sheep, in the reproductive season, were randomly assigned to four experimental groups (n = 16). Treatments consisted of a group with 10 d CIDR and 300 IU eCG; a group with 10 d CIDR and 400 IU of eCG; a group with 12 d CIDR and 300 IU of eCG; and a group with 12 d CIDR and 400 IU of eCG. A completely randomized design was used. There was an estrous presentation rate of 100% in all treatments. The begining of estrous, gestation rate, fertility rate, type of parturition, and prolificacy index were equal between groups. Progesterone serum concentration was higher in sheep from the 10 d CIDR groups. The CIDR, reused for the second time, associated with 300 or 400 IU of eCG for estrous synchronization in sheep, are effective to obtain good pregnancy rates and ensures higher prolificacy rates.Sociedade Brasileira de Zootecnia2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982021000100700Revista Brasileira de Zootecnia v.50 2021reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.37496/rbz5020200176info:eu-repo/semantics/openAccessLópez-García,SusanaSánchez-Torres,María TeresaCordero-Mora,José LuisFigueroa-Velasco,Jose LuisMartínez-Aispuro,José AlfredoGarcía-Cué,José LuisMartínez-Cruz,IsraelCárdenas-León,Marioeng2021-02-12T00:00:00Zoai:scielo:S1516-35982021000100700Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2021-02-12T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false |
dc.title.none.fl_str_mv |
Estrous synchronization in sheep with reused progesterone devices and eCG |
title |
Estrous synchronization in sheep with reused progesterone devices and eCG |
spellingShingle |
Estrous synchronization in sheep with reused progesterone devices and eCG López-García,Susana CIDR reutilization ovine reproductive efficiency |
title_short |
Estrous synchronization in sheep with reused progesterone devices and eCG |
title_full |
Estrous synchronization in sheep with reused progesterone devices and eCG |
title_fullStr |
Estrous synchronization in sheep with reused progesterone devices and eCG |
title_full_unstemmed |
Estrous synchronization in sheep with reused progesterone devices and eCG |
title_sort |
Estrous synchronization in sheep with reused progesterone devices and eCG |
author |
López-García,Susana |
author_facet |
López-García,Susana Sánchez-Torres,María Teresa Cordero-Mora,José Luis Figueroa-Velasco,Jose Luis Martínez-Aispuro,José Alfredo García-Cué,José Luis Martínez-Cruz,Israel Cárdenas-León,Mario |
author_role |
author |
author2 |
Sánchez-Torres,María Teresa Cordero-Mora,José Luis Figueroa-Velasco,Jose Luis Martínez-Aispuro,José Alfredo García-Cué,José Luis Martínez-Cruz,Israel Cárdenas-León,Mario |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
López-García,Susana Sánchez-Torres,María Teresa Cordero-Mora,José Luis Figueroa-Velasco,Jose Luis Martínez-Aispuro,José Alfredo García-Cué,José Luis Martínez-Cruz,Israel Cárdenas-León,Mario |
dc.subject.por.fl_str_mv |
CIDR reutilization ovine reproductive efficiency |
topic |
CIDR reutilization ovine reproductive efficiency |
description |
ABSTRACT The objective of the present research was to determine the effect of long synchronization protocols based on reused progesterone devices (controlled internal drug release [CIDR]) associated with different doses of equine chorionic gonadotropin (eCG) on reproductive variables in crossbred sheep (Suffolk × Kathadin × Dorset). The CIDR were used for eleven days in a previous study in sheep from the same herd and were washed and disinfected before reusing. Sixty-four sheep, in the reproductive season, were randomly assigned to four experimental groups (n = 16). Treatments consisted of a group with 10 d CIDR and 300 IU eCG; a group with 10 d CIDR and 400 IU of eCG; a group with 12 d CIDR and 300 IU of eCG; and a group with 12 d CIDR and 400 IU of eCG. A completely randomized design was used. There was an estrous presentation rate of 100% in all treatments. The begining of estrous, gestation rate, fertility rate, type of parturition, and prolificacy index were equal between groups. Progesterone serum concentration was higher in sheep from the 10 d CIDR groups. The CIDR, reused for the second time, associated with 300 or 400 IU of eCG for estrous synchronization in sheep, are effective to obtain good pregnancy rates and ensures higher prolificacy rates. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982021000100700 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982021000100700 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.37496/rbz5020200176 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
dc.source.none.fl_str_mv |
Revista Brasileira de Zootecnia v.50 2021 reponame:Revista Brasileira de Zootecnia (Online) instname:Sociedade Brasileira de Zootecnia (SBZ) instacron:SBZ |
instname_str |
Sociedade Brasileira de Zootecnia (SBZ) |
instacron_str |
SBZ |
institution |
SBZ |
reponame_str |
Revista Brasileira de Zootecnia (Online) |
collection |
Revista Brasileira de Zootecnia (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ) |
repository.mail.fl_str_mv |
||bz@sbz.org.br|| secretariarbz@sbz.org.br |
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1750318154179936256 |