Impact of body condition on pregnancy rate of cows nellore under pasture in fixed time artificial insemination (tai) program

Detalhes bibliográficos
Autor(a) principal: Ferreira, Marcelle Christine Nascimento
Data de Publicação: 2013
Outros Autores: Miranda, Rodolfo, Figueiredo, Marcelo Abidu, Costa, Orlando Marques, Palhano, Helcimar Barbosa
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11024
Resumo: The aim of this study was to evaluate the impact of body condition on pregnancy rate of Nellore cows, commercial herd undergoing artificial insemination programs in fixed time (TAI). 181 cows were used multiparous Nellore, the coastal plains region of the state of Rio de Janeiro, with more than one hundred days after birth, kept on pasture and divided into two groups subjected to the same synchronization protocol for TAI (D0-2 , 0 mg of estradiol benzoate + device with 1.0 g bovine intravaginal progesterone implant removal D8-250?g of cloprostenol + + 300 IU of eCG, D9-Bz 1.0 mg. Estradiol, D10-TAI). The groups were divided according to body condition score (BCS with scale of 1-5) in Group I, n=96: BCS ? 3,0, Group II, n=85: BCS ? 2.5 ? 2.0. All females were exposed to bulls, from 24 hours to pass after TAI, remaining with them until the end of the breeding season. The overall pregnancy rate was 86.5% (83:96) and 65.9% (56:85) for group I and group II, respectively. Data were evaluated by chi-square analysis and the results show a statistically significant difference (P <0.05) between groups, which may be concluded that the females of poor body condition (BCS ? 2.0 ? 2.5 ), have lower pregnancy rates compared to those best condition (BCS ? 3) when subjected to TAI program. 
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spelling Impact of body condition on pregnancy rate of cows nellore under pasture in fixed time artificial insemination (tai) programImpacto da condição corporal sobre a taxa de prenhez de vacas da raça nelore sob regime de pasto em programa de inseminação artificial em tempo fixo (iatf)Body conditionPregnancy rateTAINellore cows.Condição corporalTaxa de prenhezIATFVacas nelore.Ciêncvias AgráriasThe aim of this study was to evaluate the impact of body condition on pregnancy rate of Nellore cows, commercial herd undergoing artificial insemination programs in fixed time (TAI). 181 cows were used multiparous Nellore, the coastal plains region of the state of Rio de Janeiro, with more than one hundred days after birth, kept on pasture and divided into two groups subjected to the same synchronization protocol for TAI (D0-2 , 0 mg of estradiol benzoate + device with 1.0 g bovine intravaginal progesterone implant removal D8-250?g of cloprostenol + + 300 IU of eCG, D9-Bz 1.0 mg. Estradiol, D10-TAI). The groups were divided according to body condition score (BCS with scale of 1-5) in Group I, n=96: BCS ? 3,0, Group II, n=85: BCS ? 2.5 ? 2.0. All females were exposed to bulls, from 24 hours to pass after TAI, remaining with them until the end of the breeding season. The overall pregnancy rate was 86.5% (83:96) and 65.9% (56:85) for group I and group II, respectively. Data were evaluated by chi-square analysis and the results show a statistically significant difference (P <0.05) between groups, which may be concluded that the females of poor body condition (BCS ? 2.0 ? 2.5 ), have lower pregnancy rates compared to those best condition (BCS ? 3) when subjected to TAI program. O objetivo deste trabalho foi avaliar o impacto da condição corporal sobre a taxa de prenhez de vacas Nelore, rebanho comercial, submetidas a programas de inseminação artificial em tempo fixo (IATF). Foram utilizadas 181 vacas multíparas da raça Nelore, na região das baixadas litorâneas do estado do RJ, com mais de cem dias decorridos do parto, mantidas em regime de pasto e divididas em dois grupos submetidos ao mesmo protocolo de sincronização para IATF (D0- 2,0mg de benzoato de estradiol + dispositivo intravaginal bovino com 1,0g de progesterona, D8- retirada do implante + 250?g de cloprostenol sódico+ 300 UI de eCG, D9- 1,0mg Bz. Estradiol, D10- IATF). Os grupos foram divididos segundo escore de condição corporal (ECC com escala de 1-5) em: grupo I, n=96: vacas com ECC ? 3,0 e grupo II, n=85: vacas com ECC ? 2,5 ? 2,0. Todas as fêmeas foram expostas aos touros, a partir de 24 horas após a IATF para repasse, permanecendo com os mesmos até o fim da estação de monta. A taxa de prenhez total foi de 86,5% (83:96) e 65,9% (56:85) para os grupos I e grupo II, respectivamente. Os dados foram avaliados pelo teste do qui-quadrado e os resultados analisados apontam diferença estatisticamente significativa (P<0,05) entre os grupos, podendo-se concluir que as fêmeas de pior condição corporal (ECC ? 2,5 ? 2,0), apresentaram menor taxa de prenhez quando comparadas aquelas de melhor condição (ECC ? 3) quando submetidas a programa de IATF.UEL2013-08-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionEXPERIMENTO (ENSAIO CLÍNICO RANDOMIZADO)application/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1102410.5433/1679-0359.2013v34n4p1861Semina: Ciências Agrárias; Vol. 34 No. 4 (2013); 1861-1868Semina: Ciências Agrárias; v. 34 n. 4 (2013); 1861-18681679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11024/pdf_1Copyright (c) 2013 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessFerreira, Marcelle Christine NascimentoMiranda, RodolfoFigueiredo, Marcelo AbiduCosta, Orlando MarquesPalhano, Helcimar Barbosa2023-01-16T16:48:50Zoai:ojs.pkp.sfu.ca:article/11024Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2023-01-16T16:48:50Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Impact of body condition on pregnancy rate of cows nellore under pasture in fixed time artificial insemination (tai) program
Impacto da condição corporal sobre a taxa de prenhez de vacas da raça nelore sob regime de pasto em programa de inseminação artificial em tempo fixo (iatf)
title Impact of body condition on pregnancy rate of cows nellore under pasture in fixed time artificial insemination (tai) program
spellingShingle Impact of body condition on pregnancy rate of cows nellore under pasture in fixed time artificial insemination (tai) program
Ferreira, Marcelle Christine Nascimento
Body condition
Pregnancy rate
TAI
Nellore cows.
Condição corporal
Taxa de prenhez
IATF
Vacas nelore.
Ciêncvias Agrárias
title_short Impact of body condition on pregnancy rate of cows nellore under pasture in fixed time artificial insemination (tai) program
title_full Impact of body condition on pregnancy rate of cows nellore under pasture in fixed time artificial insemination (tai) program
title_fullStr Impact of body condition on pregnancy rate of cows nellore under pasture in fixed time artificial insemination (tai) program
title_full_unstemmed Impact of body condition on pregnancy rate of cows nellore under pasture in fixed time artificial insemination (tai) program
title_sort Impact of body condition on pregnancy rate of cows nellore under pasture in fixed time artificial insemination (tai) program
author Ferreira, Marcelle Christine Nascimento
author_facet Ferreira, Marcelle Christine Nascimento
Miranda, Rodolfo
Figueiredo, Marcelo Abidu
Costa, Orlando Marques
Palhano, Helcimar Barbosa
author_role author
author2 Miranda, Rodolfo
Figueiredo, Marcelo Abidu
Costa, Orlando Marques
Palhano, Helcimar Barbosa
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ferreira, Marcelle Christine Nascimento
Miranda, Rodolfo
Figueiredo, Marcelo Abidu
Costa, Orlando Marques
Palhano, Helcimar Barbosa
dc.subject.por.fl_str_mv Body condition
Pregnancy rate
TAI
Nellore cows.
Condição corporal
Taxa de prenhez
IATF
Vacas nelore.
Ciêncvias Agrárias
topic Body condition
Pregnancy rate
TAI
Nellore cows.
Condição corporal
Taxa de prenhez
IATF
Vacas nelore.
Ciêncvias Agrárias
description The aim of this study was to evaluate the impact of body condition on pregnancy rate of Nellore cows, commercial herd undergoing artificial insemination programs in fixed time (TAI). 181 cows were used multiparous Nellore, the coastal plains region of the state of Rio de Janeiro, with more than one hundred days after birth, kept on pasture and divided into two groups subjected to the same synchronization protocol for TAI (D0-2 , 0 mg of estradiol benzoate + device with 1.0 g bovine intravaginal progesterone implant removal D8-250?g of cloprostenol + + 300 IU of eCG, D9-Bz 1.0 mg. Estradiol, D10-TAI). The groups were divided according to body condition score (BCS with scale of 1-5) in Group I, n=96: BCS ? 3,0, Group II, n=85: BCS ? 2.5 ? 2.0. All females were exposed to bulls, from 24 hours to pass after TAI, remaining with them until the end of the breeding season. The overall pregnancy rate was 86.5% (83:96) and 65.9% (56:85) for group I and group II, respectively. Data were evaluated by chi-square analysis and the results show a statistically significant difference (P <0.05) between groups, which may be concluded that the females of poor body condition (BCS ? 2.0 ? 2.5 ), have lower pregnancy rates compared to those best condition (BCS ? 3) when subjected to TAI program. 
publishDate 2013
dc.date.none.fl_str_mv 2013-08-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
EXPERIMENTO (ENSAIO CLÍNICO RANDOMIZADO)
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11024
10.5433/1679-0359.2013v34n4p1861
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11024
identifier_str_mv 10.5433/1679-0359.2013v34n4p1861
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11024/pdf_1
dc.rights.driver.fl_str_mv Copyright (c) 2013 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2013 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 34 No. 4 (2013); 1861-1868
Semina: Ciências Agrárias; v. 34 n. 4 (2013); 1861-1868
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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