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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
11/12/1997 |
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Data da última atualização: |
03/10/2016 |
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Autoria: |
SMITH, G. M.; ISOPENKO, A. |
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Título: |
Effect of doses of protected polyunsaturated fatty acids on indicators of selenium status of sheep. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Research in Veterinary Science, v. 62, n. 1, p. 81-82, 1997. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: In monogastric animals, dietary polyunsaturated fatty acids (PUFA) have been shown to increase glutathione peroxidase (GSH-Px) activity in plasma and erythrocytes and to decrease plasma selenium concentration. Ruminants feeding on grass can have a high intake of PUFA. In this experiment, sheep were dosed orally with protected PUFA (Pr-PUFA) for five weeks at 5 g kg liveweight-1 three times per week for the first week and at 8 g kg-1 for the following four weeks. The Pr-PUFA did not affect GSHPx activity in erythrocytes or plasma or liver selenium concentration, but did reduce the selenium concentration in muscles by between 20 and 30 per cent. In addition, liver iron concentration was reduced by about 42 per cent. The results suggest that dietary PUFA may affect the distribution of selenium rather than its absorption. |
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Thesagro: |
Ovino; Selênio. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01297naa a2200157 a 4500
001 1517846
005 2016-10-03
008 1997 bl uuuu u00u1 u #d
100 1 $aSMITH, G. M.
245 $aEffect of doses of protected polyunsaturated fatty acids on indicators of selenium status of sheep.
260 $c1997
520 $aAbstract: In monogastric animals, dietary polyunsaturated fatty acids (PUFA) have been shown to increase glutathione peroxidase (GSH-Px) activity in plasma and erythrocytes and to decrease plasma selenium concentration. Ruminants feeding on grass can have a high intake of PUFA. In this experiment, sheep were dosed orally with protected PUFA (Pr-PUFA) for five weeks at 5 g kg liveweight-1 three times per week for the first week and at 8 g kg-1 for the following four weeks. The Pr-PUFA did not affect GSHPx activity in erythrocytes or plasma or liver selenium concentration, but did reduce the selenium concentration in muscles by between 20 and 30 per cent. In addition, liver iron concentration was reduced by about 42 per cent. The results suggest that dietary PUFA may affect the distribution of selenium rather than its absorption.
650 $aOvino
650 $aSelênio
700 1 $aISOPENKO, A.
773 $tResearch in Veterinary Science$gv. 62, n. 1, p. 81-82, 1997.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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