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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Microbial and genetically engineered oils as replacements for fish oil in aquaculture feeds
Author(s): Sprague, Matthew
Betancor, Monica B
Tocher, Douglas R
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Keywords: Alternative n-3 LC-PUFA sources
Farmed Fish
Human health
Oils from transgenic plants
Polyunsaturated fatty acids
Issue Date: Nov-2017
Citation: Sprague M, Betancor MB & Tocher DR (2017) Microbial and genetically engineered oils as replacements for fish oil in aquaculture feeds, Biotechnology Letters, 39 (11), pp. 1599-1609.
Abstract: As the global population grows more of our fish and seafood are being farmed. Fish are the main dietary source of the omega-3 (n-3) long-chain polyunsaturated fatty acids (LC-PUFA), eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids, but these cannot be produced in sufficient quantities as are now required for human health. Farmed fish have traditionally been fed a diet consisting of fishmeal and fish oil, rich in n-3 LC-PUFA. However, the increase in global aquaculture production has resulted in these finite and limited marine ingredients being replaced with sustainable alternatives of terrestrial origin that are devoid of n-3 LC-PUFA. Consequently, the nutritional value of the final product has been partially compromised with EPA and DHA levels both falling. Recent calls from the salmon industry for new sources of n-3 LC-PUFA have received significant commercial interest. Thus, this review explores the technologies being applied to producede novon-3 LC-PUFA sources, namely microalgae and genetically engineered oilseed crops, and how they may be used in aquafeeds to ensure that farmed fish remain a healthy component of the human diet.
DOI Link: 10.1007/s10529-017-2402-6
Rights: © The Author(s) 2017 This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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