Postpartum ovarian activity and uterine involution in crossbred dairy cattle

Detalhes bibliográficos
Autor(a) principal: Araújo, Paulo Graça
Data de Publicação: 2014
Outros Autores: Pizzelli, Gélio Nogueira, Carvalho, Mauro Ribeiro de, Meneguelli, Carlos Alberto
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/17202
Resumo: One hundred and sixty crossbred dairy cows were palpated every five days from 10 to 60 days postpartum to study postpartum uterine involution and ovarian activity. A complete involution was observed in 77.5% of the cows between 10 and 30 days postpartum. The mean interval from parturition to involution was 26.4 days, with a significant difference between primiparas (24.5 days) and pluriparas (28.3 days) cows. Season of the year and level of milk production did not affect the involution time. Fertility, measured by conception rate at first insemination and by the number of inseminations per conception, was not significantly influenced by the time of uterine involution. Ovarian activity was essentially absent up to 10 days postpartum. Yellow bodies or mature follicles were present in 49.3% of the cows palpated prior to 60 days postpartum. The intervals, parturition - first ovulation (29.9 days) and parturition-first estrus (53.3 days), measured to 60 and 100 days postpartum, respectively, was not affected by the season of year. However, the interval, parturition - conception, and the percentage of cows showing first postpartum estrus within a fixed interval were affected by season of year. A postpartum anestrus was observed in 35.8% of the cows. This period was significantly shorter for cow that calved in the summer than for those that calved in the winter.
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spelling Postpartum ovarian activity and uterine involution in crossbred dairy cattleInvolução uterina e atividade ovariana na vaca leiteira após o partoReproductive physiology; postpartum cow; crossbred dairy cattleFisiologia reprodutiva post-partum; bovinos leiteiros mestiçosOne hundred and sixty crossbred dairy cows were palpated every five days from 10 to 60 days postpartum to study postpartum uterine involution and ovarian activity. A complete involution was observed in 77.5% of the cows between 10 and 30 days postpartum. The mean interval from parturition to involution was 26.4 days, with a significant difference between primiparas (24.5 days) and pluriparas (28.3 days) cows. Season of the year and level of milk production did not affect the involution time. Fertility, measured by conception rate at first insemination and by the number of inseminations per conception, was not significantly influenced by the time of uterine involution. Ovarian activity was essentially absent up to 10 days postpartum. Yellow bodies or mature follicles were present in 49.3% of the cows palpated prior to 60 days postpartum. The intervals, parturition - first ovulation (29.9 days) and parturition-first estrus (53.3 days), measured to 60 and 100 days postpartum, respectively, was not affected by the season of year. However, the interval, parturition - conception, and the percentage of cows showing first postpartum estrus within a fixed interval were affected by season of year. A postpartum anestrus was observed in 35.8% of the cows. This period was significantly shorter for cow that calved in the summer than for those that calved in the winter.A involução uterina e a atividade ovariana post-partum foram estudadas em Itaguaí, RJ, por palpação retal feita até 60 dias após o parto, em 160 vacas leiteiras mestiças normais. Entre 10 e 30 dias após o parto, houve involução total do útero em 77,5% das vacas. O intervalo médio parto - involução uterina foi de 26,4 dias, variando significativamente se as vacas eram primíparas (24,5 dias) ou pluríparas (28,3 dias). As estações do ano e a produção de leite não afetaram o tempo de involução. A fertilidade não foi influenciada pela involução do útero, não havendo correlação entre ela e a percentagem de concepção na primeira inseminação ou o número de inseminações por concepção. A atividade ovariana foi praticamente ausente até 10 dias após o parto. Corpo amarelo ou folículo maduro foram palpáveis em 49,3% das vacas nos primeiros 60 dias post-partum. Os intervalos parto - primeira ovulação (29,9 dias) e parto - primeiro cio (53,3 dias) controlados até 60 e 100 dias, respectivamente, não foram alterados pelas estações do ano, sendo-o, porém, o intervalo parto - concepção e a taxa do primeiro cio post-partum. O anestro ocorreu em 35,8% dos animais, com período mais longo no inverno.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraAraújo, Paulo GraçaPizzelli, Gélio NogueiraCarvalho, Mauro Ribeiro deMeneguelli, Carlos Alberto2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/17202Pesquisa Agropecuaria Brasileira; v.9, n.7, 1974: Série Veterinária; 1-6Pesquisa Agropecuária Brasileira; v.9, n.7, 1974: Série Veterinária; 1-61678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporenghttps://seer.sct.embrapa.br/index.php/pab/article/view/17202/11519https://seer.sct.embrapa.br/index.php/pab/article/view/17202/11520info:eu-repo/semantics/openAccess2014-04-15T18:57:57Zoai:ojs.seer.sct.embrapa.br:article/17202Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T18:57:57Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Postpartum ovarian activity and uterine involution in crossbred dairy cattle
Involução uterina e atividade ovariana na vaca leiteira após o parto
title Postpartum ovarian activity and uterine involution in crossbred dairy cattle
spellingShingle Postpartum ovarian activity and uterine involution in crossbred dairy cattle
Araújo, Paulo Graça
Reproductive physiology; postpartum cow; crossbred dairy cattle
Fisiologia reprodutiva post-partum; bovinos leiteiros mestiços
title_short Postpartum ovarian activity and uterine involution in crossbred dairy cattle
title_full Postpartum ovarian activity and uterine involution in crossbred dairy cattle
title_fullStr Postpartum ovarian activity and uterine involution in crossbred dairy cattle
title_full_unstemmed Postpartum ovarian activity and uterine involution in crossbred dairy cattle
title_sort Postpartum ovarian activity and uterine involution in crossbred dairy cattle
author Araújo, Paulo Graça
author_facet Araújo, Paulo Graça
Pizzelli, Gélio Nogueira
Carvalho, Mauro Ribeiro de
Meneguelli, Carlos Alberto
author_role author
author2 Pizzelli, Gélio Nogueira
Carvalho, Mauro Ribeiro de
Meneguelli, Carlos Alberto
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Araújo, Paulo Graça
Pizzelli, Gélio Nogueira
Carvalho, Mauro Ribeiro de
Meneguelli, Carlos Alberto
dc.subject.por.fl_str_mv Reproductive physiology; postpartum cow; crossbred dairy cattle
Fisiologia reprodutiva post-partum; bovinos leiteiros mestiços
topic Reproductive physiology; postpartum cow; crossbred dairy cattle
Fisiologia reprodutiva post-partum; bovinos leiteiros mestiços
description One hundred and sixty crossbred dairy cows were palpated every five days from 10 to 60 days postpartum to study postpartum uterine involution and ovarian activity. A complete involution was observed in 77.5% of the cows between 10 and 30 days postpartum. The mean interval from parturition to involution was 26.4 days, with a significant difference between primiparas (24.5 days) and pluriparas (28.3 days) cows. Season of the year and level of milk production did not affect the involution time. Fertility, measured by conception rate at first insemination and by the number of inseminations per conception, was not significantly influenced by the time of uterine involution. Ovarian activity was essentially absent up to 10 days postpartum. Yellow bodies or mature follicles were present in 49.3% of the cows palpated prior to 60 days postpartum. The intervals, parturition - first ovulation (29.9 days) and parturition-first estrus (53.3 days), measured to 60 and 100 days postpartum, respectively, was not affected by the season of year. However, the interval, parturition - conception, and the percentage of cows showing first postpartum estrus within a fixed interval were affected by season of year. A postpartum anestrus was observed in 35.8% of the cows. This period was significantly shorter for cow that calved in the summer than for those that calved in the winter.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-15
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/17202
url https://seer.sct.embrapa.br/index.php/pab/article/view/17202
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/17202/11519
https://seer.sct.embrapa.br/index.php/pab/article/view/17202/11520
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eu_rights_str_mv openAccess
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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.9, n.7, 1974: Série Veterinária; 1-6
Pesquisa Agropecuária Brasileira; v.9, n.7, 1974: Série Veterinária; 1-6
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)
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