Conception rate of artificially inseminated holstein cows affected by cloudy vaginal mucus, under intense heat conditions.
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1020231 |
Resumo: | The objective of this work was to obtain prevalence estimates of cloudy vaginal mucus in artificially inseminated Holstein cows raised under intense heat, in order to assess the effect of meteorological conditions on its occurrence during estrus and to determine its effect on conception rate. In a first study, an association was established between the occurrence of cloudy vaginal mucus during estrus and the conception rate of inseminated cows (18,620 services), raised under intense heat (mean annual temperature of 22°C), at highly technified farms, in the arid region of northern Mexico. In a second study, data from these large dairy operations were used to assess the effect of meteorological conditions throughout the year on the occurrence of cloudy vaginal mucus during artificial insemination (76,899 estruses). The overall rate of estruses with cloudy vaginal mucus was 21.4% (16,470/76,899; 95% confidence interval = 21.1?21.7%). The conception rate of cows with clean vaginal mucus was higher than that of cows with abnormal mucus (30.6 vs. 22%). Prevalence of estruses with cloudy vaginal mucus was strongly dependent on high ambient temperature and markedly higher in May and June. Acceptable conception rates in high milk-yielding Holstein cows can only be obtained with cows showing clear and translucid mucus at artificial insemination. |
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Conception rate of artificially inseminated holstein cows affected by cloudy vaginal mucus, under intense heat conditions.Subclinical endometritisUterine infectionInfecção uterinaDesempenho reprodutivoGado leiteiroDairy cattleHeat stressReproductive efficiencySeasonal variationThe objective of this work was to obtain prevalence estimates of cloudy vaginal mucus in artificially inseminated Holstein cows raised under intense heat, in order to assess the effect of meteorological conditions on its occurrence during estrus and to determine its effect on conception rate. In a first study, an association was established between the occurrence of cloudy vaginal mucus during estrus and the conception rate of inseminated cows (18,620 services), raised under intense heat (mean annual temperature of 22°C), at highly technified farms, in the arid region of northern Mexico. In a second study, data from these large dairy operations were used to assess the effect of meteorological conditions throughout the year on the occurrence of cloudy vaginal mucus during artificial insemination (76,899 estruses). The overall rate of estruses with cloudy vaginal mucus was 21.4% (16,470/76,899; 95% confidence interval = 21.1?21.7%). The conception rate of cows with clean vaginal mucus was higher than that of cows with abnormal mucus (30.6 vs. 22%). Prevalence of estruses with cloudy vaginal mucus was strongly dependent on high ambient temperature and markedly higher in May and June. Acceptable conception rates in high milk-yielding Holstein cows can only be obtained with cows showing clear and translucid mucus at artificial insemination.Título em português: Taxa de concepção de vacas Holandesas inseminadas artificialmente e afetadas por muco vaginal turvo, sob condições de intenso calor.MIGUEL MELLADO, Universidad Autónoma Agraria Antonio Narro; LAURA MARICELA LARA, Universidad Autónoma Agraria Antonio Narro; FRANCISCO GERALDO VELIZ, Universidad Autónoma Agraria Antonio Narro; MARÍA ÁNGELES DE SANTIAGO, Universidad Autónoma Agraria Antonio Narro; LEONEL AVENDAÑO-REYES, Universidad Autónoma de Baja California; CEZAR MEZA-HERRERA, Universidad Autónoma Chapingo; JOSÉ EDUARDO GARCIA, Universidad Autónoma Agraria Antonio Narro.MELLADO, M.LARA, L. M.VELIZ, F. G.SANTIAGO, M. A. deAVENDAÑO-REYES, L.MEZA-HERRERA, C.GARCIA, J. E.2015-07-22T11:11:11Z2015-07-22T11:11:11Z2015-07-2220152017-05-25T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePesquisa Agropecuária Brasileira, Brasília, DF, v. 50, n. 6, p. 492-498, jun. 2015.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1020231enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T02:27:21Zoai:www.alice.cnptia.embrapa.br:doc/1020231Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T02:27:21falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T02:27:21Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Conception rate of artificially inseminated holstein cows affected by cloudy vaginal mucus, under intense heat conditions. |
title |
Conception rate of artificially inseminated holstein cows affected by cloudy vaginal mucus, under intense heat conditions. |
spellingShingle |
Conception rate of artificially inseminated holstein cows affected by cloudy vaginal mucus, under intense heat conditions. MELLADO, M. Subclinical endometritis Uterine infection Infecção uterina Desempenho reprodutivo Gado leiteiro Dairy cattle Heat stress Reproductive efficiency Seasonal variation |
title_short |
Conception rate of artificially inseminated holstein cows affected by cloudy vaginal mucus, under intense heat conditions. |
title_full |
Conception rate of artificially inseminated holstein cows affected by cloudy vaginal mucus, under intense heat conditions. |
title_fullStr |
Conception rate of artificially inseminated holstein cows affected by cloudy vaginal mucus, under intense heat conditions. |
title_full_unstemmed |
Conception rate of artificially inseminated holstein cows affected by cloudy vaginal mucus, under intense heat conditions. |
title_sort |
Conception rate of artificially inseminated holstein cows affected by cloudy vaginal mucus, under intense heat conditions. |
author |
MELLADO, M. |
author_facet |
MELLADO, M. LARA, L. M. VELIZ, F. G. SANTIAGO, M. A. de AVENDAÑO-REYES, L. MEZA-HERRERA, C. GARCIA, J. E. |
author_role |
author |
author2 |
LARA, L. M. VELIZ, F. G. SANTIAGO, M. A. de AVENDAÑO-REYES, L. MEZA-HERRERA, C. GARCIA, J. E. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
MIGUEL MELLADO, Universidad Autónoma Agraria Antonio Narro; LAURA MARICELA LARA, Universidad Autónoma Agraria Antonio Narro; FRANCISCO GERALDO VELIZ, Universidad Autónoma Agraria Antonio Narro; MARÍA ÁNGELES DE SANTIAGO, Universidad Autónoma Agraria Antonio Narro; LEONEL AVENDAÑO-REYES, Universidad Autónoma de Baja California; CEZAR MEZA-HERRERA, Universidad Autónoma Chapingo; JOSÉ EDUARDO GARCIA, Universidad Autónoma Agraria Antonio Narro. |
dc.contributor.author.fl_str_mv |
MELLADO, M. LARA, L. M. VELIZ, F. G. SANTIAGO, M. A. de AVENDAÑO-REYES, L. MEZA-HERRERA, C. GARCIA, J. E. |
dc.subject.por.fl_str_mv |
Subclinical endometritis Uterine infection Infecção uterina Desempenho reprodutivo Gado leiteiro Dairy cattle Heat stress Reproductive efficiency Seasonal variation |
topic |
Subclinical endometritis Uterine infection Infecção uterina Desempenho reprodutivo Gado leiteiro Dairy cattle Heat stress Reproductive efficiency Seasonal variation |
description |
The objective of this work was to obtain prevalence estimates of cloudy vaginal mucus in artificially inseminated Holstein cows raised under intense heat, in order to assess the effect of meteorological conditions on its occurrence during estrus and to determine its effect on conception rate. In a first study, an association was established between the occurrence of cloudy vaginal mucus during estrus and the conception rate of inseminated cows (18,620 services), raised under intense heat (mean annual temperature of 22°C), at highly technified farms, in the arid region of northern Mexico. In a second study, data from these large dairy operations were used to assess the effect of meteorological conditions throughout the year on the occurrence of cloudy vaginal mucus during artificial insemination (76,899 estruses). The overall rate of estruses with cloudy vaginal mucus was 21.4% (16,470/76,899; 95% confidence interval = 21.1?21.7%). The conception rate of cows with clean vaginal mucus was higher than that of cows with abnormal mucus (30.6 vs. 22%). Prevalence of estruses with cloudy vaginal mucus was strongly dependent on high ambient temperature and markedly higher in May and June. Acceptable conception rates in high milk-yielding Holstein cows can only be obtained with cows showing clear and translucid mucus at artificial insemination. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-07-22T11:11:11Z 2015-07-22T11:11:11Z 2015-07-22 2015 2017-05-25T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 50, n. 6, p. 492-498, jun. 2015. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1020231 |
identifier_str_mv |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 50, n. 6, p. 492-498, jun. 2015. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1020231 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503408763273216 |