Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cows

Detalhes bibliográficos
Autor(a) principal: Ferreira, Adilson da Mota
Data de Publicação: 1991
Outros Autores: Salomoni, Eduardo, Del Duca, Laudo Orestes Antunes
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/3453
Resumo: Data on three hundred and fourty five calvings out of primiparous Ibagé cows (5/8 Angus - 3/8 Nelore) raised in the southwest region of Rio Grande do Sul, Brazil, was collected through a fifteen-year period (1967-1970 and 1976-1986). The analysis involved the conception rate (R) and the interval from the beginning of the 2nd breeding season to the moment the cow conceived (BCI). The effects of year, calving month, sex of calf and average daily weight gain from the first breeding season to the second breeding season (ADG) were investigated. Through the least-squares methodology it was possible to determine for dams with R = 36.5% and BCI = 94.7 days, that the effects of year, calving month and ADG were significant (P < 0.01). August and September were the best calving months. Each 50 gr. over the ADG increased R by 8.7% and decreased the BCI in 6 days.
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spelling Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cowsEfeito do ano, ganho de peso, época de parto e sexo do terneiro, na repetição de cria de matrizes primíparas da raça Ibagébeef cattle; reproductive performance; growth; weight; crossbred beef heifersgado de corte; desempenho reprodutivo; ganho médio diárioData on three hundred and fourty five calvings out of primiparous Ibagé cows (5/8 Angus - 3/8 Nelore) raised in the southwest region of Rio Grande do Sul, Brazil, was collected through a fifteen-year period (1967-1970 and 1976-1986). The analysis involved the conception rate (R) and the interval from the beginning of the 2nd breeding season to the moment the cow conceived (BCI). The effects of year, calving month, sex of calf and average daily weight gain from the first breeding season to the second breeding season (ADG) were investigated. Through the least-squares methodology it was possible to determine for dams with R = 36.5% and BCI = 94.7 days, that the effects of year, calving month and ADG were significant (P < 0.01). August and September were the best calving months. Each 50 gr. over the ADG increased R by 8.7% and decreased the BCI in 6 days.Foram estudados 345 partos de vacas de primeira cria da raça Ibagé (5/8 Angus - 3/8 Nelore) ocorridos durante 15 anos (1967-1970 e 1976-1986), criadas em campo na região sudoeste do Rio Grande do Sul. Pelo método dos quadrados mínimos, foram analisados o percentual de repetição de cria (R) e o intervalo entre o início do 2o acasalamento e a concepção (IAC). Foram investigados os efeitos referentes ao ano e mês de parto, sexo do terneiro e ganho de peso médio diário entre o início do 1o e do 2o acasalamentos (GMD). Para as primíparas com R de 36,5% e IAC de 94,7 dias, os efeitos do ano, mês de parto e GMD apresentam-se significativos (P ≤ 0,01). Foi constatado que os melhores meses para o parto foram agosto e setembro e que cada 50 g a mais no GMD incrementam R em 8,7 pontos percentuais e antecipam o IAC em 6 dias.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFerreira, Adilson da MotaSalomoni, EduardoDel Duca, Laudo Orestes Antunes1991-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/3453Pesquisa Agropecuaria Brasileira; v.26, n.8, ago. 1991; 1165-1174Pesquisa Agropecuária Brasileira; v.26, n.8, ago. 1991; 1165-11741678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/3453/786info:eu-repo/semantics/openAccess2010-06-17T19:04:33Zoai:ojs.seer.sct.embrapa.br:article/3453Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-06-17T19:04:33Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cows
Efeito do ano, ganho de peso, época de parto e sexo do terneiro, na repetição de cria de matrizes primíparas da raça Ibagé
title Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cows
spellingShingle Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cows
Ferreira, Adilson da Mota
beef cattle; reproductive performance; growth; weight; crossbred beef heifers
gado de corte; desempenho reprodutivo; ganho médio diário
title_short Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cows
title_full Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cows
title_fullStr Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cows
title_full_unstemmed Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cows
title_sort Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cows
author Ferreira, Adilson da Mota
author_facet Ferreira, Adilson da Mota
Salomoni, Eduardo
Del Duca, Laudo Orestes Antunes
author_role author
author2 Salomoni, Eduardo
Del Duca, Laudo Orestes Antunes
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Ferreira, Adilson da Mota
Salomoni, Eduardo
Del Duca, Laudo Orestes Antunes
dc.subject.por.fl_str_mv beef cattle; reproductive performance; growth; weight; crossbred beef heifers
gado de corte; desempenho reprodutivo; ganho médio diário
topic beef cattle; reproductive performance; growth; weight; crossbred beef heifers
gado de corte; desempenho reprodutivo; ganho médio diário
description Data on three hundred and fourty five calvings out of primiparous Ibagé cows (5/8 Angus - 3/8 Nelore) raised in the southwest region of Rio Grande do Sul, Brazil, was collected through a fifteen-year period (1967-1970 and 1976-1986). The analysis involved the conception rate (R) and the interval from the beginning of the 2nd breeding season to the moment the cow conceived (BCI). The effects of year, calving month, sex of calf and average daily weight gain from the first breeding season to the second breeding season (ADG) were investigated. Through the least-squares methodology it was possible to determine for dams with R = 36.5% and BCI = 94.7 days, that the effects of year, calving month and ADG were significant (P < 0.01). August and September were the best calving months. Each 50 gr. over the ADG increased R by 8.7% and decreased the BCI in 6 days.
publishDate 1991
dc.date.none.fl_str_mv 1991-08-01
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/3453
url https://seer.sct.embrapa.br/index.php/pab/article/view/3453
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/3453/786
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.26, n.8, ago. 1991; 1165-1174
Pesquisa Agropecuária Brasileira; v.26, n.8, ago. 1991; 1165-1174
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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