| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Milk fatty acid profile of Holstein x Gyr cows on 'Marandu' grass pasture under different grazing strategies
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| Autores: |
Silva,Bárbara Cardoso da Mata e
Rodriguez,Norberto Mario
Morenz,Mirton José Frota
Gama,Marco Antônio Sundfeld da
Martins,Carlos Eugênio
Paciullo,Domingos Sávio Campos
Gomide,Carlos Augusto de Miranda
Anjos,Albert José dos
Madeiro,Afrânio Silva
Lopes,Fernando César Ferraz
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| Data: |
2017-08-01
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| Ano: |
2017
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| Palavras-chave: |
Urochloa brizantha
Conjugated linoleic acid
Rumenic acid
Tropical grass.
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| Resumo: |
Abstract: The objective of this work was to evaluate the milk fatty acid (FA) profile of Holstein x Gyr cows subjected to two different grazing managements (fixed and variable rest periods) of Urochloa brizantha 'Marandu' pastures. A randomized complete block design was used, with two replicates of pasture areas (blocks) per treatment and four cows per block. Milk production and composition were not affected by grazing strategies. No treatment effects were observed on the proportions (g 100 g-1 of total FA) of the main FAs (palmitic, linoleic, and α-linolenic) of the pasture, but their intakes (grams per day) were affected by differences in forage dry matter intake. The concentrations of FAs in milk plasma and fat were not affected by the treatments. Milk fat contents of rumenic, vaccenic, oleic, and α-linolenic acids varied from 0.71 to 0.93, 1.40 to 1.50, 19.40 to 19.70, and 0.39 to 0.43 g 100 g-1 total FAs, respectively. Grazing strategies of U.brizantha 'Marandu' cause no changes on the milk fatty acid profile of cows.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000800652
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/s0100-204x2017000800011
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.52 n.8 2017
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| Direitos: |
info:eu-repo/semantics/openAccess
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