Changes in fatty acid composition in muscle of three farmed carp fish species (Labeo rohita, Cirrhinus mrigala, Catla catla) raised under the same conditions

► Present study reveals that farm fish species are nutritious with high level of long chain PUFA. ► Docosahexanoic acid and eicopentanoic acid were the major PUFA found in analysed species. ► The percentage of n-3 was found higher than the n-6. ► The n-3:n-6 was calculated within the recommended ratio. ► Results have shown considerable differences in muscle FA among fish species with same diet.