Unstable nonacid milk and milk composition of Jersey cows on feed restriction

Detalhes bibliográficos
Autor(a) principal: Zanela, Maira Balbinotti
Data de Publicação: 2006
Outros Autores: Fischer, Vivian, Ribeiro, Maria Edi Rocha, Barbosa, Rosângela Silveira, Marques, Lúcia Treptow, Junior, Waldyr Stumpf, Zanela, Claudir
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/7213
Resumo: The objective of this work was to evaluate the effects of feed restriction on unstable nonacid milk occurrence and milk composition of Jersey cows. A pilot trial of feed restriction was conducted with eight lactating Jersey cows. Animals were confined and allocated to two groups which received a balanced diet ad libitum. They received sequentially two treatments, at different periods: 100 and 60% of nutritional requirements. Milk was analyzed for titrated acidity and precipitation at alcohol test 76%; pH, density, cryoscopy, casein, fat, crude protein, lactose, total solids, number of somatic cells and milk production were determined. Feed restriction increases unstable nonacid milk occurrence, reduces milk production and amount of components; however, it does not change the concentration of the milky components.
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spelling Unstable nonacid milk and milk composition of Jersey cows on feed restrictionLeite instável não-ácido e composição do leite de vacas Jersey sob restrição alimentarmilk stability; undernutrition; alcohol/etanol test; lactation cowsestabilidade do leite; subnutrição; teste do álcool/etanol; vacas em lactaçãoThe objective of this work was to evaluate the effects of feed restriction on unstable nonacid milk occurrence and milk composition of Jersey cows. A pilot trial of feed restriction was conducted with eight lactating Jersey cows. Animals were confined and allocated to two groups which received a balanced diet ad libitum. They received sequentially two treatments, at different periods: 100 and 60% of nutritional requirements. Milk was analyzed for titrated acidity and precipitation at alcohol test 76%; pH, density, cryoscopy, casein, fat, crude protein, lactose, total solids, number of somatic cells and milk production were determined. Feed restriction increases unstable nonacid milk occurrence, reduces milk production and amount of components; however, it does not change the concentration of the milky components.O objetivo deste trabalho foi avaliar o efeito da restrição alimentar na incidência do leite instável não-ácido (LINA) e na composição do leite de vacas Jersey. Foi realizado um experimento piloto de indução ao LINA, com oito vacas Jersey em lactação, confinadas e separadas em dois grupos, às quais havia sido fornecida uma dieta equilibrada ad libitum. Em dois períodos de 18 dias, foram fornecidos dois tratamentos com 100 e 60% das exigências nutricionais. Foram realizados os testes de acidez titulável e do álcool 76%; pH, densidade, crioscopia, caseína, gordura, proteína bruta, lactose, extrato seco total, número de células somáticas e produção de leite foram determinados. A restrição alimentar aumenta a ocorrência de LINA e diminui a produção de leite e a quantidade total dos componentes produzidos; entretanto, não altera os teores dos componentes lácteos.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraZanela, Maira BalbinottiFischer, VivianRibeiro, Maria Edi RochaBarbosa, Rosângela SilveiraMarques, Lúcia TreptowJunior, Waldyr StumpfZanela, Claudir2006-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7213Pesquisa Agropecuaria Brasileira; v.41, n.5, maio 2006; 835-840Pesquisa Agropecuária Brasileira; v.41, n.5, maio 2006; 835-8401678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7213/4258info:eu-repo/semantics/openAccess2010-12-06T14:37:43Zoai:ojs.seer.sct.embrapa.br:article/7213Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-12-06T14:37:43Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Unstable nonacid milk and milk composition of Jersey cows on feed restriction
Leite instável não-ácido e composição do leite de vacas Jersey sob restrição alimentar
title Unstable nonacid milk and milk composition of Jersey cows on feed restriction
spellingShingle Unstable nonacid milk and milk composition of Jersey cows on feed restriction
Zanela, Maira Balbinotti
milk stability; undernutrition; alcohol/etanol test; lactation cows
estabilidade do leite; subnutrição; teste do álcool/etanol; vacas em lactação
title_short Unstable nonacid milk and milk composition of Jersey cows on feed restriction
title_full Unstable nonacid milk and milk composition of Jersey cows on feed restriction
title_fullStr Unstable nonacid milk and milk composition of Jersey cows on feed restriction
title_full_unstemmed Unstable nonacid milk and milk composition of Jersey cows on feed restriction
title_sort Unstable nonacid milk and milk composition of Jersey cows on feed restriction
author Zanela, Maira Balbinotti
author_facet Zanela, Maira Balbinotti
Fischer, Vivian
Ribeiro, Maria Edi Rocha
Barbosa, Rosângela Silveira
Marques, Lúcia Treptow
Junior, Waldyr Stumpf
Zanela, Claudir
author_role author
author2 Fischer, Vivian
Ribeiro, Maria Edi Rocha
Barbosa, Rosângela Silveira
Marques, Lúcia Treptow
Junior, Waldyr Stumpf
Zanela, Claudir
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Zanela, Maira Balbinotti
Fischer, Vivian
Ribeiro, Maria Edi Rocha
Barbosa, Rosângela Silveira
Marques, Lúcia Treptow
Junior, Waldyr Stumpf
Zanela, Claudir
dc.subject.por.fl_str_mv milk stability; undernutrition; alcohol/etanol test; lactation cows
estabilidade do leite; subnutrição; teste do álcool/etanol; vacas em lactação
topic milk stability; undernutrition; alcohol/etanol test; lactation cows
estabilidade do leite; subnutrição; teste do álcool/etanol; vacas em lactação
description The objective of this work was to evaluate the effects of feed restriction on unstable nonacid milk occurrence and milk composition of Jersey cows. A pilot trial of feed restriction was conducted with eight lactating Jersey cows. Animals were confined and allocated to two groups which received a balanced diet ad libitum. They received sequentially two treatments, at different periods: 100 and 60% of nutritional requirements. Milk was analyzed for titrated acidity and precipitation at alcohol test 76%; pH, density, cryoscopy, casein, fat, crude protein, lactose, total solids, number of somatic cells and milk production were determined. Feed restriction increases unstable nonacid milk occurrence, reduces milk production and amount of components; however, it does not change the concentration of the milky components.
publishDate 2006
dc.date.none.fl_str_mv 2006-05-01
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/7213
url https://seer.sct.embrapa.br/index.php/pab/article/view/7213
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/7213/4258
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.41, n.5, maio 2006; 835-840
Pesquisa Agropecuária Brasileira; v.41, n.5, maio 2006; 835-840
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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