Treatments to optimize the use of artificial insemination and reproductive efficiency in beef cattle under tropical environments

Detalhes bibliográficos
Autor(a) principal: De Sá Filho, Ocilon Gomes [UNESP]
Data de Publicação: 2011
Outros Autores: Vasconcelos, José Luiz Moraes [UNESP]
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.
id UNSP_7848166678a61204850f266942c8c2f7
oai_identifier_str oai:repositorio.unesp.br:11449/72918
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling 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