Prédiction de la composition en acides gras de la viande bovine en fonction de l’alimentation des animaux par méta-analyse
2016
Gruffat, Dominique | Mourot, Benoît-Pierre | Durand, Denys | Berthelot, Valérie | Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH) ; Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS) | Valorex SAS | Modélisation Systémique Appliquée aux Ruminants (MoSAR) ; Institut National de la Recherche Agronomique (INRA)-AgroParisTech
A meta-analysis on the influence of dietary lipid or fatty acid (FA) contents on beef FA composition was conductedusing the “ω3Meat” database. This database contains bibliographic data posterior to year 2000 related to the impact ofcattle farming system parameters on beef FA composition. The results of the meta-analysis pointed that 1) Theproportion of C18:3 n-3 present in cattle muscle is directly proportional to its percentage in the diet and to the fatcontent of the diet, 2) Diet lipid content seems to be the most important factor of variation of n-6 PUFA and trans FApresent in cattle muscle. Thus, meta-analysis is a useful tool to assess and summarize the knowledge to accuratelypredict FA composition of ruminant meat even in rearing conditions.
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