Issue |
OCL
Volume 8, Number 1, Janvier-Février 2001
|
|
---|---|---|
Page(s) | 66 - 67 | |
Section | Dossier : Deutsche Gesellschaft für Fettwissenschaft - Association française pour l’étude des corps gras | |
DOI | https://doi.org/10.1051/ocl.2001.0066 | |
Published online | 15 January 2001 |
Effect of PUFA at sn-2 position in dietary triacylglycerols on fatty acid composition of adipose tissue in growing-finishing pigs
Institute of Animal Sciences, ETH Zurich, CH-8092
Zurich, Switzerland
A potential effect of the specific composition of plant oil triacylglycerols, with PUFAs predominantly esterified at the sn-2 position, on the fatty acid composition of adipose tissues of pigs was investigated. Two blends with a ratio of 1/3 and 3/1 of soybean oil and beef tallow were randomised or left unmodified and fed at 4% of a conventional diet to 4 * 12 pigs. The randomisation of fatty acids at sn-1, 2 and 3 positions did not affect the fatty acid composition of pig adipose tissues. It is concluded that the position of PUFA in dietary triacylglycerols is of minor relevance for the composition of depot fat in growing-finishing pigs
Résumé
L’effet potentiel d’une huile végétale contenant des triacylglycérols ayant en position sn-2 principalement des acides gras polyinsaturés sur la composition du tissu adipeux de porcs a été étudié. Quatre diètes conventionnelles contenant 4% d’un mélange d’huile de soja/suif de boeuf (rapport 1:3 ou 3:1, interestérifié au hasard ou non) ont été données à 4 groupes de 12 porcs chacun. La redistribution au hasard des acides gras sur les positions sn-1, 2, et 3 du glycérol n’a pas modifié la composition en acides gras du tissu adipeux des porcs. En conclusion, la position des acides gras polyinsaturés dans les triacylglycérols contenus dans la diète n’a que peu d’influence sur la composition du tissu adipeux chez les porcs à l’engrais.
Key words: sn-2 position / triacylglycerols / polyunsaturated fatty acids / pig / feed
Mots clés : position sn-2 / triacylglycérol / acides gras polyinsaturés / porc / diéte animale
© John Libbey Eurotext 2001
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