Fatty Acids Composition of Meat of Five Native Chicken (Gallus gallus) Ecotypes of Benin Reared under Organic or Conventional system

摘要

The current study aims to determine the composition in fatty acids of 5 native chicken ecotypes of Benin reared under organic or conventional system. It appears that the predominant Fatty Acids (FA) in chicken meat of all treatments were palmitic and stearic (18:0) acids as Saturated Fatty Acid (SFA), oleic acid as Monounsaturated Fatty Acids (MUFA), Conjugated Linoleic Acid (CLA) and 20:3 n-3 as Polyunsaturated Fatty Acids (PUFA). The highest SFA, MUFA and PUFA contents were found respectively in Holli, Fulani and North ecotypes (P<0.05). The highest n-3 PUFA content (3.8%; P<0.05) was found in Holli chickens. The weakest ratio n-6/n-3 PUFA was found in North chickens. As for the rearing system, the highest MUFA content was recorded in chicken reared under organic system (P<0.05). The breast meat showed higher n-3 PUFA concentration and lower ratio n-6 PUFA/n-3 PUFA than thigh meat (P<0.001). Overall, native chicken of Benin and organic system can ensure additional health benefit for consumers.