Higher acclimation temperature modulates the composition of muscle fatty acid of Tor putitora juveniles
Akhtar, M.S. | Pal, A.K. | Sahu, N.P. | Ciji, A. | Mahanta, P.C.
A 30-day acclimation trial was conducted using golden mahseer, Tor putitora juveniles to study its muscle fatty acid composition at five acclimation temperatures (AT). Ninety juveniles of T. putitora were distributed among five treatment groups (20, 23, 26, 29 and 32±0.5°C). At the end of 30 days trial, highest percentage of monounsaturated fatty acids was found at 20°C and lowest at 26°C. The highest percentage of n-6 polyunsaturated fatty acid (PUFA) was found at 23°C and a decreasing trend was observed with increase in AT. However, highest percentage of n-3 PUFA was found at 32°C and lowest at 29°C. The maximum n-6 to n-3 ratio was observed at 23°C and ratio decreased to a minimum at 32°C. The results revealed that T. putitora juveniles could adapt to higher acclimation temperatures by altering its muscle fatty acid composition mainly by increasing its total saturated fatty acids especially stearic acid.
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