EVALUATION OF POLYUNSATURATED TO SATURATED FATTY ACID RATIO IN THE FAT OF DIFFERENT CHICKEN TYPES

Résumé

Samples were taken from the liver and the abdominal fat of the carcasses of male and female broilers (meat type), layers (egg type) and locals (dual purpose type). Lipids were extracted and subjected to volumetric analysis, iodine number determination, thin layer chromatography (TLC) with iodine staining and high performance liquid chromatography – mass spectrometry (HPLC-MS) to determine the polyunsaturated to saturated fatty acid (P/S) ratio. The study concluded that female chickens, meat type chickens and abdominal fat samples had higher (P<0.05) lipid quantities than male chickens, layer and dual purpose chickens and liver samples, respectively. The P/S ratio of lipids extracted from the abdominal fat and from the liver did not differ (P<0.05) from each other.