Physiological and environmental effects on milk yield in milking crossbred cows of the production system at the CNPGL/Embrapa

Detalhes bibliográficos
Autor(a) principal: Filho, Geraldo Noronha Junqueira
Data de Publicação: 1992
Outros Autores: Verneque, Rui da Silva, Lemos, Álvaro de Matos, da Silva, Hamilton Carmélio Machado, Reis, Ronaldo Braga
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/3630
Resumo: This study was conducted with the data from crossbred Holstein-Zebu-Gir (H-Z) cows in the Production System which was introduced in 1977 at the National Centre of Research on Dairy Cattle (CNPGL/EMBRAPA), Coronel Pacheco, Minas Gerais State, Brazil. The effects of physiological and environmental factors on the milk production were studied. Milk yields from 395 lactation averaged 2,989±80 kg. Milk yield was affected by systems, year of parturition (lactations starting from June to August were higher than those from December to February), genetic groups (within the System they were all equivalent in production but prior to the System the 3/4 H-Z produced more milk than the 1/2 H-Z bred), and finally the calving order which reached maximum yield during the 5th lactation. The interaction System x calving season was also observed.
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spelling Physiological and environmental effects on milk yield in milking crossbred cows of the production system at the CNPGL/EmbrapaFatores fisiológicos e de meio sobre a produção de leite por vacas mestiças leiteiras no CNPGL/Embrapafriesian-indicus crosses; genetic groupsHolandês-Zebu-Gir; grupo genéticoThis study was conducted with the data from crossbred Holstein-Zebu-Gir (H-Z) cows in the Production System which was introduced in 1977 at the National Centre of Research on Dairy Cattle (CNPGL/EMBRAPA), Coronel Pacheco, Minas Gerais State, Brazil. The effects of physiological and environmental factors on the milk production were studied. Milk yields from 395 lactation averaged 2,989±80 kg. Milk yield was affected by systems, year of parturition (lactations starting from June to August were higher than those from December to February), genetic groups (within the System they were all equivalent in production but prior to the System the 3/4 H-Z produced more milk than the 1/2 H-Z bred), and finally the calving order which reached maximum yield during the 5th lactation. The interaction System x calving season was also observed.O presente trabalho foi realizado com dados de 131 vacas mestiças Holandês-Zebu-Gir do Sistema de Produção implantado em 1977 no CNPGL/EMBRAPA, Coronel Pacheco, MG. Foram estudados os efeitos de fatores fisiológicos e do meio sobre a produção de leite. As estimativas da média, do erro-padrão, e o coeficiente de variação, em 395 lactações, foram de, respectivamente, 2.989±80 kg de leite, e de 26,6%. Local de nascimento das vacas constituiu fonte de variação significativa (P < 0,01) da produção de leite. As vacas que iniciaram produções na época 3 (jun-jul-ago) produziram significativamente (P < 0,05) mais leite que as que iniciaram na época 1 (dez-jan-fev). Grupo genético, dentro de local de nascimento, influenciou (P < 0,01) a produção de leite. Os animais 1/2 e 3/4 H-Z, nascidos dentro do Sistema, apresentaram melhores produções do que aqueles do mesmo grupo genético que nasceram fora. A ordem de parto afetou (P < 0,01) a produção. As primeiras e segundas lactações representaram 69,8% e 85,7% da produção máxima, que corresponde à quinta lactação. A interação local de nascimento x época de parto foi significativa (P < 0,05).Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFilho, Geraldo Noronha JunqueiraVerneque, Rui da SilvaLemos, Álvaro de Matosda Silva, Hamilton Carmélio MachadoReis, Ronaldo Braga1992-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/3630Pesquisa Agropecuaria Brasileira; v.27, n.1, jan. 1992; 153-162Pesquisa Agropecuária Brasileira; v.27, n.1, jan. 1992; 153-1621678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/3630/921info:eu-repo/semantics/openAccess2010-03-15T12:50:16Zoai:ojs.seer.sct.embrapa.br:article/3630Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-03-15T12:50:16Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Physiological and environmental effects on milk yield in milking crossbred cows of the production system at the CNPGL/Embrapa
Fatores fisiológicos e de meio sobre a produção de leite por vacas mestiças leiteiras no CNPGL/Embrapa
title Physiological and environmental effects on milk yield in milking crossbred cows of the production system at the CNPGL/Embrapa
spellingShingle Physiological and environmental effects on milk yield in milking crossbred cows of the production system at the CNPGL/Embrapa
Filho, Geraldo Noronha Junqueira
friesian-indicus crosses; genetic groups
Holandês-Zebu-Gir; grupo genético
title_short Physiological and environmental effects on milk yield in milking crossbred cows of the production system at the CNPGL/Embrapa
title_full Physiological and environmental effects on milk yield in milking crossbred cows of the production system at the CNPGL/Embrapa
title_fullStr Physiological and environmental effects on milk yield in milking crossbred cows of the production system at the CNPGL/Embrapa
title_full_unstemmed Physiological and environmental effects on milk yield in milking crossbred cows of the production system at the CNPGL/Embrapa
title_sort Physiological and environmental effects on milk yield in milking crossbred cows of the production system at the CNPGL/Embrapa
author Filho, Geraldo Noronha Junqueira
author_facet Filho, Geraldo Noronha Junqueira
Verneque, Rui da Silva
Lemos, Álvaro de Matos
da Silva, Hamilton Carmélio Machado
Reis, Ronaldo Braga
author_role author
author2 Verneque, Rui da Silva
Lemos, Álvaro de Matos
da Silva, Hamilton Carmélio Machado
Reis, Ronaldo Braga
author2_role author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Filho, Geraldo Noronha Junqueira
Verneque, Rui da Silva
Lemos, Álvaro de Matos
da Silva, Hamilton Carmélio Machado
Reis, Ronaldo Braga
dc.subject.por.fl_str_mv friesian-indicus crosses; genetic groups
Holandês-Zebu-Gir; grupo genético
topic friesian-indicus crosses; genetic groups
Holandês-Zebu-Gir; grupo genético
description This study was conducted with the data from crossbred Holstein-Zebu-Gir (H-Z) cows in the Production System which was introduced in 1977 at the National Centre of Research on Dairy Cattle (CNPGL/EMBRAPA), Coronel Pacheco, Minas Gerais State, Brazil. The effects of physiological and environmental factors on the milk production were studied. Milk yields from 395 lactation averaged 2,989±80 kg. Milk yield was affected by systems, year of parturition (lactations starting from June to August were higher than those from December to February), genetic groups (within the System they were all equivalent in production but prior to the System the 3/4 H-Z produced more milk than the 1/2 H-Z bred), and finally the calving order which reached maximum yield during the 5th lactation. The interaction System x calving season was also observed.
publishDate 1992
dc.date.none.fl_str_mv 1992-01-01
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/3630
url https://seer.sct.embrapa.br/index.php/pab/article/view/3630
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/3630/921
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.27, n.1, jan. 1992; 153-162
Pesquisa Agropecuária Brasileira; v.27, n.1, jan. 1992; 153-162
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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