Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
DOI: | 10.4061/2011/923053 |
Texto Completo: | http://dx.doi.org/10.4061/2011/923053 http://hdl.handle.net/11449/72918 |
Resumo: | Bos indicus cattle, the preferred genetic group in tropical climates, are characterized by having a lower reproductive efficiency than Bos taurus. The reasons for the poorer reproductive efficiency of the Bos indicus cows include longer lengths of gestation and postpartum anestrus, a short length of estrous behavior with a high incidence of estrus occurring during the dark hours, and puberty at older age and at a higher percentage of body weight relative to mature body weight. Moreover, geography, environment, economics, and social traditions are factors contributing for a lower use of reproductive biotechnologies in tropical environments. Hormonal protocols have been developed to resolve some of the reproductive challenges of the Bos indicus cattle and allow artificial insemination, which is the main strategy to hasten genetic improvement in commercial beef ranches. Most of these treatments use exogenous sources of progesterone associated with strategies to improve the final maturation of the dominant follicle, such as temporary weaning and exogenous gonadotropins. These treatments have caused large impacts on reproductive performance of beef cattle reared under tropical areas. Copyright © 2011 O. G. Sá Filho and J. L. M. Vasconcelos. |
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Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environmentsBosBos indicusBos taurusBos indicus cattle, the preferred genetic group in tropical climates, are characterized by having a lower reproductive efficiency than Bos taurus. The reasons for the poorer reproductive efficiency of the Bos indicus cows include longer lengths of gestation and postpartum anestrus, a short length of estrous behavior with a high incidence of estrus occurring during the dark hours, and puberty at older age and at a higher percentage of body weight relative to mature body weight. Moreover, geography, environment, economics, and social traditions are factors contributing for a lower use of reproductive biotechnologies in tropical environments. Hormonal protocols have been developed to resolve some of the reproductive challenges of the Bos indicus cattle and allow artificial insemination, which is the main strategy to hasten genetic improvement in commercial beef ranches. Most of these treatments use exogenous sources of progesterone associated with strategies to improve the final maturation of the dominant follicle, such as temporary weaning and exogenous gonadotropins. These treatments have caused large impacts on reproductive performance of beef cattle reared under tropical areas. Copyright © 2011 O. G. Sá Filho and J. L. M. Vasconcelos.Departamento de Produç̃ao Animal Faculdade de Medicina Veterińaria e Zootecnia UNESP, 18618-000 Botucatu, SPDepartamento de Produç̃ao Animal Faculdade de Medicina Veterińaria e Zootecnia UNESP, 18618-000 Botucatu, SPUniversidade Estadual Paulista (Unesp)De Sá Filho, Ocilon Gomes [UNESP]Vasconcelos, José Luiz Moraes [UNESP]2014-05-27T11:26:16Z2014-05-27T11:26:16Z2011-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.4061/2011/923053Veterinary Medicine International, v. 2011.2042-0048http://hdl.handle.net/11449/7291810.4061/2011/9230532-s2.0-848639509062-s2.0-84863950906.pdf1069922096621313Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengVeterinary Medicine International0,536info:eu-repo/semantics/openAccess2024-09-09T13:00:57Zoai:repositorio.unesp.br:11449/72918Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-09T13:00:57Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments |
title |
Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments |
spellingShingle |
Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments De Sá Filho, Ocilon Gomes [UNESP] Bos Bos indicus Bos taurus De Sá Filho, Ocilon Gomes [UNESP] Bos Bos indicus Bos taurus |
title_short |
Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments |
title_full |
Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments |
title_fullStr |
Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments |
title_full_unstemmed |
Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments |
title_sort |
Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments |
author |
De Sá Filho, Ocilon Gomes [UNESP] |
author_facet |
De Sá Filho, Ocilon Gomes [UNESP] De Sá Filho, Ocilon Gomes [UNESP] Vasconcelos, José Luiz Moraes [UNESP] Vasconcelos, José Luiz Moraes [UNESP] |
author_role |
author |
author2 |
Vasconcelos, José Luiz Moraes [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
De Sá Filho, Ocilon Gomes [UNESP] Vasconcelos, José Luiz Moraes [UNESP] |
dc.subject.por.fl_str_mv |
Bos Bos indicus Bos taurus |
topic |
Bos Bos indicus Bos taurus |
description |
Bos indicus cattle, the preferred genetic group in tropical climates, are characterized by having a lower reproductive efficiency than Bos taurus. The reasons for the poorer reproductive efficiency of the Bos indicus cows include longer lengths of gestation and postpartum anestrus, a short length of estrous behavior with a high incidence of estrus occurring during the dark hours, and puberty at older age and at a higher percentage of body weight relative to mature body weight. Moreover, geography, environment, economics, and social traditions are factors contributing for a lower use of reproductive biotechnologies in tropical environments. Hormonal protocols have been developed to resolve some of the reproductive challenges of the Bos indicus cattle and allow artificial insemination, which is the main strategy to hasten genetic improvement in commercial beef ranches. Most of these treatments use exogenous sources of progesterone associated with strategies to improve the final maturation of the dominant follicle, such as temporary weaning and exogenous gonadotropins. These treatments have caused large impacts on reproductive performance of beef cattle reared under tropical areas. Copyright © 2011 O. G. Sá Filho and J. L. M. Vasconcelos. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-12-01 2014-05-27T11:26:16Z 2014-05-27T11:26:16Z |
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/10.4061/2011/923053 Veterinary Medicine International, v. 2011. 2042-0048 http://hdl.handle.net/11449/72918 10.4061/2011/923053 2-s2.0-84863950906 2-s2.0-84863950906.pdf 1069922096621313 |
url |
http://dx.doi.org/10.4061/2011/923053 http://hdl.handle.net/11449/72918 |
identifier_str_mv |
Veterinary Medicine International, v. 2011. 2042-0048 10.4061/2011/923053 2-s2.0-84863950906 2-s2.0-84863950906.pdf 1069922096621313 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Veterinary Medicine International 0,536 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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_ |
1822183855822471168 |
dc.identifier.doi.none.fl_str_mv |
10.4061/2011/923053 |