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- Title
Comparison of muscle fatty acid and vitamin composition between wild and farmed common dentex (Dentex dentex).
- Authors
RIGOS, George; GRIGORAKIS, Kriton; KOUTSODIMOU, Maria; GIALAMAS, Ioannis; FOUNTOULAKI, Eleni; NENGAS, Ioannis
- Abstract
The present study was carried out to compare the tissue composition of wild and farmed common dentex (Dentex dentex) and the major nutrients in order to further explore the dietary requirements of this species. Wild (41±14 g) and farmed (10±2 g) fish were analyzed for proximate composition, fatty acid profile and vitamin C and E muscle and liver content. The fat content of the farmed population was almost six times higher than that measured in wild fish at the expense of water content. There were no significant differences in the protein and ash content between the two populations. The vitamin C content was insignificantly lower in wild fish liver while differences were significant in muscle compared to their farmed conspecifics. Vitamin E concentration was found to be significantly higher in both examined tissues of the farmed fish. The fatty acid profiles were different between the wild and farmed individuals. Wild fish livers were significantly richer in ω-6 fatty acids, poorer in total monounsaturates (MUFA), but no differences were observed for total polyunsaturates (PUFA) and saturated fatty acids (SFA). As regards muscle tissues, farmed fish were found to contain higher 22:6ω3 levels but significantly lower 16:1ω7 and 18:1ω9 levels than the wild ones. The information given by the present study should be evaluated for the further improvement of common dentex diets.
- Subjects
DENTEX; VITAMIN C content of food; FATTY acid content of food; UNSATURATED fatty acids in human nutrition; SATURATED fatty acids in human nutrition
- Publication
Journal of Biological Research, 2012, Vol 17, p26
- ISSN
1790-045X
- Publication type
Article