The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows

Detalhes bibliográficos
Autor(a) principal: Rego, Oldemiro Aguiar do
Data de Publicação: 2005
Outros Autores: Rosa, Henrique José Duarte, Portugal, Paula V., Franco, Tiago, 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/10400.3/2622
Resumo: Copyright © INRA, EDP Sciences, 2005.
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spelling The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cowsDairy CowConjugated Linoleic AcidFatty AcidsPastureVegetable OilsCopyright © INRA, EDP Sciences, 2005.The objective of this study was to observe the effect of supplementation with vegetable oils (VO) on the fatty acid profiles and conjugated linoleic acid (CLA) content of milk fat. Twelve dairy cows in mid lactation fed on pasture were blocked by body weight, milk production and days in lactation and randomly allocated from blocks to 3 treatments repeated in a Latin square design with periods of 28 day duration. The treatments were as follows: cows on pasture supplemented with 5 kg concentrate per head per day (C), supplemented with 4.5 kg concentrate + 0.5 kg sunflower oil per head per day (SFO) and supplemented with 4.5 kg concentrate + 0.5 kg soybean oil per head per day (SBO). The animals were grazed as a group and were stocked at 2.5 heads per hectare. The treatments had no effect on milk yield or protein yield and content, but decreased milk fat yield and content (P < 0.05). Milk fat from the cows supplemented with VO had a lower concentration of short and medium chain fatty acids (P < 0.05) and a higher concentration of long chain fatty acids (P < 0.05). The addition of VO to the diet also resulted in a reduction in saturated and an increase in unsaturated fatty acids of milk fat (P < 0.05). The hypercholesterolemic fatty acids in milk fat (i.e. C12:0, C14:0 and C16:0) decreased while the concentration of oleic and linoleic acids increased with VO (P < 0.05). There was no effect on linolenic acid. Finally, the inclusion of VO in the diet increased (P < 0.05) the contents in milk fat of the various cis/trans isomers of oleic acid (including trans-vacenic, TVA) and of CLA which increased by 61%.EDP SciencesRepositório da Universidade dos AçoresRego, Oldemiro Aguiar doRosa, Henrique José DuartePortugal, Paula V.Franco, TiagoVouzela, Carlos Fernando MimosoBorba, Alfredo Emílio Silveira deBessa, Rui José B.2014-01-20T16:19:42Z2005-012014-01-17T16:50:30Z2005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/2622engRego, O.A.; Rosa, H.J.D.; Portugal, P.V.; Franco, T.; Vouzela, C.M.; Borba, A.E.S.; Bessa, R.J.B. (2005). "The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows", «Animal Research», 54(1): 17-24. http://dx.doi.org/10.1051/animres:2005002.1627-3583 (Print)10.1051/animres:2005002info: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:10400.3/2622Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:25:17.752874Repositório 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 The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows
title The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows
spellingShingle The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows
Rego, Oldemiro Aguiar do
Dairy Cow
Conjugated Linoleic Acid
Fatty Acids
Pasture
Vegetable Oils
title_short The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows
title_full The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows
title_fullStr The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows
title_full_unstemmed The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows
title_sort The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows
author Rego, Oldemiro Aguiar do
author_facet Rego, Oldemiro Aguiar do
Rosa, Henrique José Duarte
Portugal, Paula V.
Franco, Tiago
Vouzela, Carlos Fernando Mimoso
Borba, Alfredo Emílio Silveira de
Bessa, Rui José B.
author_role author
author2 Rosa, Henrique José Duarte
Portugal, Paula V.
Franco, Tiago
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
Rosa, Henrique José Duarte
Portugal, Paula V.
Franco, Tiago
Vouzela, Carlos Fernando Mimoso
Borba, Alfredo Emílio Silveira de
Bessa, Rui José B.
dc.subject.por.fl_str_mv Dairy Cow
Conjugated Linoleic Acid
Fatty Acids
Pasture
Vegetable Oils
topic Dairy Cow
Conjugated Linoleic Acid
Fatty Acids
Pasture
Vegetable Oils
description Copyright © INRA, EDP Sciences, 2005.
publishDate 2005
dc.date.none.fl_str_mv 2005-01
2005-01-01T00:00:00Z
2014-01-20T16:19:42Z
2014-01-17T16:50:30Z
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/10400.3/2622
url http://hdl.handle.net/10400.3/2622
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Rego, O.A.; Rosa, H.J.D.; Portugal, P.V.; Franco, T.; Vouzela, C.M.; Borba, A.E.S.; Bessa, R.J.B. (2005). "The effects of supplementation with sunflower and soybean oils on the fatty acid profile of milk fat from grazing dairy cows", «Animal Research», 54(1): 17-24. http://dx.doi.org/10.1051/animres:2005002.
1627-3583 (Print)
10.1051/animres:2005002
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
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