Indian Journal of Animal Research

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Research Article

Fatty acid compositions and atherogenic and thrombogenic indices of commonly consumed marine, brackish and fresh water fishes

Chandravathany Devadawson1*, Chamila Jayasinghe2, Ramiah Sivakanesan3

ABSTRACT

The fatty acid contents of marine, brackish and fresh water fishes were identified and quantified by gas chromatography. It was found that marine fishes were better sources of n-3 fatty acids, whereas fresh and brackish water fishes were better sources of n-6 fatty acids. Marine fish had the highest amount of PUFA. Among PUFAs, docosadienoic acid (C22:2n6) and adrenic acid (C22:4n6) were identified in 20 fishes. EPA and DHA was significantly higher in marine fishes (p< 0.01), particularly, Dussumieria acuta, the rainbow sardine (24.80 mg g-1). Gerres abbreviates, the silver belly (20.16 mg g-1) and Tricusurus savala, the wolf herring (23.34 mg g-1). The n-3: n-6 ratio was significantly higher in marine fishes (p < 0.05) than in the brackish and fresh water fishes studied. Atherogenicity (AI) and thrombogenicity(TI) values were significantly higher in both fresh and brackish water fishes and significantly lower (p < 0.01) in marine fishes.  

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