Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herds

Detalhes bibliográficos
Autor(a) principal: Alvarez, Rafael Herrera
Data de Publicação: 2003
Outros Autores: Martinez, Antonio Campanha, Carvalho, João Batista Pereira de, Arcaro, Juliana Rodrigues Pozzi, Pires, Rita Maria Ladeira, Oliveira, Cláudio Alvarenga de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/6576
Resumo: The present study aimed to evaluate the efficiency of Ovsynch treatment associated with prefixed-time artificial insemination on Bos taurus and Bos indicus cows. Herds of Holstein, Caracu, Nelore and Mantiqueira breeds were used. A herd of Gir cows with poor reproductive performance was also included. Each breed was divided in tree groups. Group 1 received Ovsynch treatment and was inseminated at prefixed time. Group 2 was induced to estrus with cloprostenol and inseminated thereafter. Group 3 was inseminated at natural heat. Conception and pregnancy rates were determined by ultra-sound. No significant interactions were detected among breeds, age, parity, postpartum period and lactating cows with or without their calves. Conception rates did not differ (P > 0.05) among groups while pregnancy rate was higher (P < 0.05) for group 1 and 2 comparing to group 3. In the Gir herd Ovsynch treatment did not enhance conception nor pregnancy rates. Independently of breed, conception rate is similar after Ovsynch, cloprostenol and control treatments, and pregnancy rate can be improved with Ovsynch and cloprostenol treatments. In cows with unspecific reproductive ovarian disorders, Ovsynch treatment do not enhance conception or pregnancy rates.
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spelling Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herdsEficácia do tratamento Ovsynch associado à inseminação artificial prefixada em rebanhos Bos taurus e Bos indicuscattle; reproductive performance; ovulation; synchronization; fertilitygado bovino; reprodutividade; ovulação; sincronização; fertilidadeThe present study aimed to evaluate the efficiency of Ovsynch treatment associated with prefixed-time artificial insemination on Bos taurus and Bos indicus cows. Herds of Holstein, Caracu, Nelore and Mantiqueira breeds were used. A herd of Gir cows with poor reproductive performance was also included. Each breed was divided in tree groups. Group 1 received Ovsynch treatment and was inseminated at prefixed time. Group 2 was induced to estrus with cloprostenol and inseminated thereafter. Group 3 was inseminated at natural heat. Conception and pregnancy rates were determined by ultra-sound. No significant interactions were detected among breeds, age, parity, postpartum period and lactating cows with or without their calves. Conception rates did not differ (P > 0.05) among groups while pregnancy rate was higher (P < 0.05) for group 1 and 2 comparing to group 3. In the Gir herd Ovsynch treatment did not enhance conception nor pregnancy rates. Independently of breed, conception rate is similar after Ovsynch, cloprostenol and control treatments, and pregnancy rate can be improved with Ovsynch and cloprostenol treatments. In cows with unspecific reproductive ovarian disorders, Ovsynch treatment do not enhance conception or pregnancy rates.O presente trabalho objetivou avaliar a eficácia do tratamento Ovsynch associado à inseminação artificial em tempo prefixado em vacas Bos taurus e Bos indicus. Foram utilizados rebanhos das raças Holandesa, Caracu, Nelore e Mantiqueira. Também foi incluído um rebanho de vacas Gir, com problemas de fertilidade. Cada rebanho foi dividido em três grupos. O grupo 1 recebeu o tratamento Ovsynch e foi inseminado em tempo prefixado. O grupo 2 foi inseminado no cio induzido com cloprostenol. O grupo 3 foi inseminado no cio natural. As taxas de concepção e de prenhez foram determinadas por ultra-sonografia. Não existiu interação significativa das variáveis reprodutivas analisadas para rebanho, idade, período pós-parto, número de parição e presença do bezerro. A taxa de concepção não diferiu (P > 0,05) entre os grupos, ao passo que a taxa de prenhez foi superior (P < 0,05) nos grupos 1 e 2 em comparação ao grupo 3. No rebanho Gir, o tratamento Ovsynch não alterou a taxa de concepção nem a de prenhez. Independentemente da raça, os tratamentos Ovsynch e cloprostenol não afetam a taxa de concepção, mas melhoram a taxa de prenhez. O tratamento Ovsynch não aumenta a fertilidade de vacas com problemas reprodutivos inespecíficos.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraAlvarez, Rafael HerreraMartinez, Antonio CampanhaCarvalho, João Batista Pereira deArcaro, Juliana Rodrigues PozziPires, Rita Maria LadeiraOliveira, Cláudio Alvarenga de2003-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6576Pesquisa Agropecuaria Brasileira; v.38, n.2, fev. 2003; 317-323Pesquisa Agropecuária Brasileira; v.38, n.2, fev. 2003; 317-3231678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6576/3633info:eu-repo/semantics/openAccess2010-08-26T12:58:02Zoai:ojs.seer.sct.embrapa.br:article/6576Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-08-26T12:58:02Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herds
Eficácia do tratamento Ovsynch associado à inseminação artificial prefixada em rebanhos Bos taurus e Bos indicus
title Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herds
spellingShingle Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herds
Alvarez, Rafael Herrera
cattle; reproductive performance; ovulation; synchronization; fertility
gado bovino; reprodutividade; ovulação; sincronização; fertilidade
title_short Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herds
title_full Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herds
title_fullStr Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herds
title_full_unstemmed Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herds
title_sort Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herds
author Alvarez, Rafael Herrera
author_facet Alvarez, Rafael Herrera
Martinez, Antonio Campanha
Carvalho, João Batista Pereira de
Arcaro, Juliana Rodrigues Pozzi
Pires, Rita Maria Ladeira
Oliveira, Cláudio Alvarenga de
author_role author
author2 Martinez, Antonio Campanha
Carvalho, João Batista Pereira de
Arcaro, Juliana Rodrigues Pozzi
Pires, Rita Maria Ladeira
Oliveira, Cláudio Alvarenga de
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Alvarez, Rafael Herrera
Martinez, Antonio Campanha
Carvalho, João Batista Pereira de
Arcaro, Juliana Rodrigues Pozzi
Pires, Rita Maria Ladeira
Oliveira, Cláudio Alvarenga de
dc.subject.por.fl_str_mv cattle; reproductive performance; ovulation; synchronization; fertility
gado bovino; reprodutividade; ovulação; sincronização; fertilidade
topic cattle; reproductive performance; ovulation; synchronization; fertility
gado bovino; reprodutividade; ovulação; sincronização; fertilidade
description The present study aimed to evaluate the efficiency of Ovsynch treatment associated with prefixed-time artificial insemination on Bos taurus and Bos indicus cows. Herds of Holstein, Caracu, Nelore and Mantiqueira breeds were used. A herd of Gir cows with poor reproductive performance was also included. Each breed was divided in tree groups. Group 1 received Ovsynch treatment and was inseminated at prefixed time. Group 2 was induced to estrus with cloprostenol and inseminated thereafter. Group 3 was inseminated at natural heat. Conception and pregnancy rates were determined by ultra-sound. No significant interactions were detected among breeds, age, parity, postpartum period and lactating cows with or without their calves. Conception rates did not differ (P > 0.05) among groups while pregnancy rate was higher (P < 0.05) for group 1 and 2 comparing to group 3. In the Gir herd Ovsynch treatment did not enhance conception nor pregnancy rates. Independently of breed, conception rate is similar after Ovsynch, cloprostenol and control treatments, and pregnancy rate can be improved with Ovsynch and cloprostenol treatments. In cows with unspecific reproductive ovarian disorders, Ovsynch treatment do not enhance conception or pregnancy rates.
publishDate 2003
dc.date.none.fl_str_mv 2003-02-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6576
url https://seer.sct.embrapa.br/index.php/pab/article/view/6576
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6576/3633
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.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.38, n.2, fev. 2003; 317-323
Pesquisa Agropecuária Brasileira; v.38, n.2, fev. 2003; 317-323
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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