Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/2450

Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Fatty acid requirements in ontogeny of marine and freshwater fish
Authors: Tocher, Douglas R
Contact Email: drt1@stir.ac.uk
Keywords: essential fatty acid
fish
requirements
quantitative
qualitative
review
marine
freshwater
ontogeny
Issue Date: Apr-2010
Publisher: Wiley-Blackwell
Citation: Tocher DR (2010) Fatty acid requirements in ontogeny of marine and freshwater fish, Aquaculture Research, 41 (5), pp. 717-732.
Abstract: Essential fatty acid (EFA) requirements vary qualitatively and quantitatively with both species and during ontogeny of fish, with early developmental stages and broodstock being critical periods. Environment and/or trophic level are major factors, with freshwater/diadromous species generally requiring C18 polyunsaturated fatty acids (PUFA) whereas marine fish have a strict requirement for long chain PUFA, eicosapentaenoic, docosahexaenoic and arachidonic acids. Other than marine fish larvae, defining precise quantitative or semi-quantitative EFA requirements in fish has received less attention in recent years. However, the changes to feed formulations being forced upon the aquaculture industry by the pressing need for sustainable development, namely the replacement of marine fish meal and oils with plant–derived products, has reintroduced EFA into the research agenda. It is particularly important to note that the physiological requirements of the fish to prevent deficiency pathologies and produce optimal growth may not parallel the requirements for maintaining nutritional quality. For instance, salmonids can be successfully cultured on vegetable oils devoid of long-chain n-3 PUFA but not without potentially compromising their health benefits to the human consumer. Solving this problem will require detailed knowledge of the biochemical and molecular basis of EFA requirements and metabolism.
Type: Journal Article
URI: http://hdl.handle.net/1893/2450
DOI Link: http://dx.doi.org/10.1111/j.1365-2109.2008.02150.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.
Affiliation: Aquaculture

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