Premium
Fatty acid metabolism in young oysters, Crassostrea gigas : Polyunsaturated fatty acids
Author(s) -
Waldock M. J.,
Holland D. L.
Publication year - 1984
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02534783
Subject(s) - tetraselmis suecica , polyunsaturated fatty acid , oyster , crassostrea , fatty acid , biology , food science , biochemistry , chemistry , botany , algae , fishery
Tetraselmis suecica and Dunaliella tertiolecta were grown for 24 hr in the presence of 14 C sodium bicarbonate and then fed separately to batches of juvenile oysters, Crassostrea gigas , for 3 days. D. tertiolecta contained fatty acids no longer than C 18 ; 22∶6ω3 was absent in T. suecica . Analysis of the oyster fatty acids by radio gas chromatography (GC) showed that oysters were able to incorporate some of the dietary 14 C label into long‐chain fatty acids not supplied in the diet, e.g., C 20 and C 22 mono‐ and polyunsaturated fatty acids, and particularly 20∶5ω3. However, the low 14 C incorporation into fatty acids longer or more unsaturated than those supplied in the diet suggests that elongation and desaturation activity in young oysters is not sufficient to sustain optimum growth.