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Effect of a linseed diet on lipogenesis, fatty acid composition and stearoyl-CoA-desaturase in rabbits

Published online by Cambridge University Press:  18 July 2011

F. Benatmane ,
M. Kouba ,
A. Youyou  and
J. Mourot
F. Benatmane
Affiliation:
Faculté des Sciences Biologiques et Agronomiques, Département d'agronomie, BP17, Tizi-Ouzou 15000, Algeria UMR 1079 INRA, Agrocampus Ouest, Systèmes d'Elevage Nutrition Animale et Humaine, F-35590 Saint Gilles, France
M. Kouba*
Affiliation:
UMR 1079 INRA, Agrocampus Ouest, Systèmes d'Elevage Nutrition Animale et Humaine, F-35590 Saint Gilles, France
A. Youyou
Affiliation:
Département de Technologie Alimentaire, Institut National d'Agronomie, El Harrach 16200, Alger, Algeria
J. Mourot
Affiliation:
UMR 1079 INRA, Agrocampus Ouest, Systèmes d'Elevage Nutrition Animale et Humaine, F-35590 Saint Gilles, France
*
†E-mail: maryline.kouba@agrocampus-ouest.fr
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Abstract

The aim of the study was to examine the effect of a linseed diet on meat quality and on lipogenesis in rabbits. Twelve rabbits were fed a control or a linseed diet. There was no diet effect on growth, food consumption, carcass characteristics and meat ultimate pH and colour. Feeding the linseed diet increased the n-3 polyunsaturated fatty acids (PUFA) levels in perirenal and interscapular fats, in the Longissimus dorsi muscle and in the liver. The linseed diet produced lower linoleic acid/α-linolenic acid ratios in adipose tissues and in the Longissimus dorsi muscle, but not in the liver. Diet did not affect lipogenic enzyme activities in the Longissimus dorsi muscle, whereas the linseed diet decreased the lipogenic potential in perirenal and interscapular fats, and in the liver. Feeding rabbits with a high n-3 PUFA diet led to a decrease in the oxidative stability of perirenal fat and the Longissimus dorsi muscle, and to an inhibition of stearoyl-CoA-desaturase activity in liver and in adipose tissues, but not in muscle.

Keywords

lipogenesisrabbitlinseedstearoyl-CoA-desaturasefatty acids
Type
Full Paper
Information
animal , Volume 5 , Issue 12 , 10 November 2011 , pp. 1993 - 2000
Copyright
Copyright © The Animal Consortium 2011

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