Effect of diet on the fatty acid pattern of milk from dairy cows

Detalhes bibliográficos
Autor(a) principal: Rego, Oldemiro Aguiar do
Data de Publicação: 2004
Outros Autores: Portugal, Paula V., Sousa, Marisa B., Rosa, Henrique José Duarte, Vouzela, Carlos Fernando Mimoso, Borba, Alfredo Emílio Silveira de, Bessa, Rui José B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.3/2623
Resumo: Copyright © INRA, EDP Sciences, 2004.
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spelling Effect of diet on the fatty acid pattern of milk from dairy cowsConjugated Linoleic AcidDairy CowFatty AcidMilk FatPastureTotal Mixed RationCopyright © INRA, EDP Sciences, 2004.Twelve dairy cows 130 days in milk were sorted by milk production and body weight and assigned to three feeding regimens in a 3 × 3 Latin-square design, in order to study the effects of diet on milk fatty acid (FA) composition. The cows were fed a total mixed ration (TMR) consisting of corn silage (60%) and concentrate (40%) on dry matter basis, or grazed pasture, without (P) or with 5 kg•d-1 concentrate as a supplement (SP). Supplemented grazing dairy cows produced significantly more milk than the cows on the TMR and P diets (P < 0.05). The supplementation of grazing dairy cows with a low fat concentrate did not significantly affect the milk fat FA profile. The pasture diet, with a supplement or not, decreased the concentration of saturated FA (P < 0.05) and increased the concentration of unsaturated FA (P < 0.05), of milk fat as compared to the TMR diet. The reduction in medium-chain FA was offset in large part by increases in long-chain FA (mainly oleic acid). The concentrations of conjugated linoleic acid (CLA) (P < 0.05) and trans-vaccenic acid were higher (P < 0.05) in the milk fat from the grazing cows. The results showed substantial variation among individual cows within treatments on milk fat content of CLA. Significant correlations were found for individual cow's milk fat CLA content across diets. Overall, this study indicates that the concentration of CLA in milk fat is enhanced by the dietary intake of pasture and that moderate low fat concentrate supplementation of grazing dairy cows increases performance without compromising the FA profile of milk fat.EDP SciencesRepositório da Universidade dos AçoresRego, Oldemiro Aguiar doPortugal, Paula V.Sousa, Marisa B.Rosa, Henrique José DuarteVouzela, Carlos Fernando MimosoBorba, Alfredo Emílio Silveira deBessa, Rui José B.2014-01-20T16:32:49Z2004-052014-01-17T16:51:29Z2004-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/2623engRego, O.A.; Portugal, P.V.; Sousa, M.B.; Rosa, H.J.D.; Vouzela, C.M.; Borba, A.E.S.; Bessa, R.J.B. (2004). "Effect of diet on the fatty acid pattern of milk from dairy cows", «Animal Research», 53(3): 213-220. http://dx.doi.org/10.1051/animres:2004010.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:30:28Zoai:repositorio.uac.pt:10400.3/2623Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:25:17.809221Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Effect of diet on the fatty acid pattern of milk from dairy cows
title Effect of diet on the fatty acid pattern of milk from dairy cows
spellingShingle Effect of diet on the fatty acid pattern of milk from dairy cows
Rego, Oldemiro Aguiar do
Conjugated Linoleic Acid
Dairy Cow
Fatty Acid
Milk Fat
Pasture
Total Mixed Ration
title_short Effect of diet on the fatty acid pattern of milk from dairy cows
title_full Effect of diet on the fatty acid pattern of milk from dairy cows
title_fullStr Effect of diet on the fatty acid pattern of milk from dairy cows
title_full_unstemmed Effect of diet on the fatty acid pattern of milk from dairy cows
title_sort Effect of diet on the fatty acid pattern of milk from dairy cows
author Rego, Oldemiro Aguiar do
author_facet Rego, Oldemiro Aguiar do
Portugal, Paula V.
Sousa, Marisa B.
Rosa, Henrique José Duarte
Vouzela, Carlos Fernando Mimoso
Borba, Alfredo Emílio Silveira de
Bessa, Rui José B.
author_role author
author2 Portugal, Paula V.
Sousa, Marisa B.
Rosa, Henrique José Duarte
Vouzela, Carlos Fernando Mimoso
Borba, Alfredo Emílio Silveira de
Bessa, Rui José B.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Rego, Oldemiro Aguiar do
Portugal, Paula V.
Sousa, Marisa B.
Rosa, Henrique José Duarte
Vouzela, Carlos Fernando Mimoso
Borba, Alfredo Emílio Silveira de
Bessa, Rui José B.
dc.subject.por.fl_str_mv Conjugated Linoleic Acid
Dairy Cow
Fatty Acid
Milk Fat
Pasture
Total Mixed Ration
topic Conjugated Linoleic Acid
Dairy Cow
Fatty Acid
Milk Fat
Pasture
Total Mixed Ration
description Copyright © INRA, EDP Sciences, 2004.
publishDate 2004
dc.date.none.fl_str_mv 2004-05
2004-05-01T00:00:00Z
2014-01-20T16:32:49Z
2014-01-17T16:51:29Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.3/2623
url http://hdl.handle.net/10400.3/2623
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Rego, O.A.; Portugal, P.V.; Sousa, M.B.; Rosa, H.J.D.; Vouzela, C.M.; Borba, A.E.S.; Bessa, R.J.B. (2004). "Effect of diet on the fatty acid pattern of milk from dairy cows", «Animal Research», 53(3): 213-220. http://dx.doi.org/10.1051/animres:2004010.
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 EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799130702390755328

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