Accumulation of α-tocopherol in eggs enriched with ω3 and ω6 polyunsaturated fatty acids

J. Galobart, A. C. Barroeta, L. Cortinas, M. D. Baucells, R. Codony

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32 Citations (Scopus)

Abstract

The objective of the present study was to evaluate the pattern of accumulation of α-tocopherol (α-Toc) in egg as a response to dietary supplementation with 200 mg/kg diet of α-tocopheryl acetate (α-TA) and whether the inclusion of dietary oils with different fatty acid (FA) composition affected this parameter. Forty hens were randomly distributed into two treatments resulting from the supplementation of a basal diet containing 200 mg/kg α-TA with either 5% linseed oil (LO) or sunflower oil (SO). α-Tocopherol concentration of eggs was measured at 0, 4, 9, 14, 19, and 50 d after inclusion of the experimental diets. Results show that α-Toc concentration in the egg increased after the 4th d of feeding, reaching its maximum level at 14 d (168 μg/g egg), after which it decreased 10 to 12% until 19 d, obtaining similar values at 50 d (145 μg/g egg). No differences were observed between dietary oils in the deposition pattern of α-Toc in the egg. ©2002 Poultry Science Association, Inc.
Original languageEnglish
Pages (from-to)1873-1876
JournalPoultry Science
Volume81
Issue number12
DOIs
Publication statusPublished - 1 Jan 2002

Keywords

  • Dietary supplementation
  • Polyunsaturated fatty acid-enriched eggs
  • α-tocopherol accumulation

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