Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/20097
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Changes in lipid content, fatty acid composition and lipid class composition of eggs and developing larvae (0-40 days old) of cultured common dentex (Dentex dentex Linnaeus 1758)
Authors: Gimenez, Gemma
Esteves, Alicia
Henderson, R James
Bell, J Gordon
Contact Email: repository.librarian@stir.ac.uk
Keywords: Dentex dentex
egg
FAME
larva
larval development
lipid class
lipid composition
polyunsaturated fatty acid
Issue Date: Aug-2008
Publisher: Wiley-Blackwell
Citation: Gimenez G, Esteves A, Henderson RJ & Bell JG (2008) Changes in lipid content, fatty acid composition and lipid class composition of eggs and developing larvae (0-40 days old) of cultured common dentex (Dentex dentex Linnaeus 1758), Aquaculture Nutrition, 14 (4), pp. 300-308.
Abstract: Total lipid content, fatty acid (FA) composition and lipid class composition of common dentex eggs spawned at different times and larvae reared under different culture conditions until 40 days posthatch (dph) were analysed to get a general pattern of lipid composition during larval development. Two groups of larvae were kept under starvation to compare their FA composition with that obtained from normally fed larvae. To compare FA use or accumulation during larval development, results were grouped according to the developmental stage of the larvae instead of age in days posthatch. Saturated and monounsaturated FAs decreased along larval development, while polyunsaturated fatty acid (PUFA) content increased. The ratio of docosahexaenoic acid (DHA)/eicosapentaenoic acid shifted from 4 to 5 in early developmental stages to lower than 1 after metamorphosis. Arachidonic acid levels remained constant along larval development. Larvae kept 6 days under starvation consumed most of their n-3 PUFA while conserving the DHA to values at day 0. The results presented here are useful for the design of nutritional experiments, because there were differences detected in terms of lipid and FA composition between developmental stages with higher differences mainly found in first-feeding larvae and early developmental stages.
Type: Journal Article
URI: http://hdl.handle.net/1893/20097
DOI Link: http://dx.doi.org/10.1111/j.1365-2095.2007.00530.x
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Please note that requests are being mediated by the repository librarian and you may encounter delays while the author is being contacted.
Affiliation: IRTA
IRTA
University of Stirling
Aquaculture

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