Please use this identifier to cite or link to this item:
http://hdl.handle.net/1893/22034
Appears in Collections: | Aquaculture Journal Articles |
Peer Review Status: | Refereed |
Title: | Replacement of fish oil with a DHA-rich algal meal derived from Schizochytrium sp. on the fatty acid and persistent organic pollutant levels in diets and flesh of Atlantic salmon (Salmo salar, L.) post-smolts |
Authors: | Sprague, Matthew Walton, Jamie Campbell, Patrick Strachan, Fiona Dick, James R Bell, J Gordon |
Contact Email: | j.r.dick@stir.ac.uk |
Keywords: | Atlantic salmon Salmo salar Schizochytrium sp. algal-meal fish oil replacement fatty acids persistent organic pollutants (POPs) PCDD/Fs DL-PCBs PBDEs. |
Issue Date: | Oct-2015 |
Citation: | Sprague M, Walton J, Campbell P, Strachan F, Dick JR & Bell JG (2015) Replacement of fish oil with a DHA-rich algal meal derived from Schizochytrium sp. on the fatty acid and persistent organic pollutant levels in diets and flesh of Atlantic salmon (Salmo salar, L.) post-smolts, Food Chemistry, 185, pp. 413-421. |
Abstract: | The replacement of fish oil (FO) with a DHA-rich Schizochytrium sp. algal meal (AM) at two inclusion levels (11% and 5.5% of diet) was tested in Atlantic salmon post-smolts compared to fish fed a FO diet of northern (NFO) or southern hemisphere (SFO) origin. Fish were preconditioned prior to the 19-week experimental feeding period to reduce long-chain polyunsaturated fatty acid (LC-PUFA) and persistent organic pollutant levels (POPs). Dietary POP levels differed significantly between treatments in the order of NFO>SFO>11AM/5.5AM and were subsequently reflected in the flesh. Fish fed the 11AM diet contained similar DHA levels (g.100g -1 flesh) to FO-fed fish, despite percentage differences. However, the low levels of EPA in the diets and flesh of algal-fed fish compromised the overall nutritional value to the final consumer. Nevertheless, further developments in microalgae culture offer a promising alternative lipid source of LC-PUFA to FO in salmon feeds that warrants further investigation. |
DOI Link: | http://dx.doi.org/10.1016/j.foodchem.2015.03.150 |
Rights: | This item has been embargoed for a period. During the embargo 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. Accepted refereed manuscript of: Sprague M, Walton J, Campbell P, Strachan F, Dick JR & Bell JG (2015) Replacement of fish oil with a DHA-rich algal meal derived from Schizochytrium sp. on the fatty acid and persistent organic pollutant levels in diets and flesh of Atlantic salmon (Salmo salar, L.) post-smolts, Food Chemistry, 185, pp. 413-421. DOI: 10.1016/j.foodchem.2015.03.150 © 2015, Elsevier. Licensed under the Creative Commons Attribution- NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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File | Description | Size | Format | |
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Sprague et al. (Algal meal Accepted version) UNI.pdf | 557.74 kB | Adobe PDF | View/Open |
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