Effects of year, weight gain, breeding season and sex of calf on the conception rate of primiparou cows
Autor(a) principal: | |
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Data de Publicação: | 1991 |
Outros Autores: | , |
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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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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1793416659848921088 |