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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 Chem. 2015 Oct 15; 185:413-21.FC

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>11 AM/5.5 AM and were subsequently reflected in the flesh. Fish fed the 11 AM diet contained similar DHA levels (g 100 g(-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.

Authors+Show Affiliations

Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, Scotland, UK. Electronic address: matthew.sprague@stir.ac.uk.BioMar Ltd., North Shore Road, Grangemouth Docks, Grangemouth FK3 8UL, Scotland, UK.BioMar Ltd., North Shore Road, Grangemouth Docks, Grangemouth FK3 8UL, Scotland, UK.Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, Scotland, UK.Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, Scotland, UK.Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, Scotland, UK.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25952887

Citation

Sprague, M, et al. "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, vol. 185, 2015, pp. 413-21.
Sprague M, Walton J, Campbell PJ, et al. 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 Chem. 2015;185:413-21.
Sprague, M., Walton, J., Campbell, P. J., Strachan, F., Dick, J. R., & Bell, J. G. (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, 413-21. https://doi.org/10.1016/j.foodchem.2015.03.150
Sprague M, et al. 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 Chem. 2015 Oct 15;185:413-21. PubMed PMID: 25952887.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - 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. AU - Sprague,M, AU - Walton,J, AU - Campbell,P J, AU - Strachan,F, AU - Dick,J R, AU - Bell,J G, Y1 - 2015/04/10/ PY - 2015/01/27/received PY - 2015/03/19/revised PY - 2015/03/31/accepted PY - 2015/5/9/entrez PY - 2015/5/9/pubmed PY - 2016/1/5/medline KW - Atlantic salmon KW - DL-PCBs KW - Docosahexaenoic acid (PubChem CID: 445580) KW - Eicosapentaenoic acid (PubChem CID: 446284) KW - Fatty acids KW - Fish oil replacement KW - PBDEs KW - PCDD/Fs KW - Persistent organic pollutants (POPs) KW - Salmo salar KW - Schizochytrium sp. algal-meal SP - 413 EP - 21 JF - Food chemistry JO - Food Chem VL - 185 N2 - 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>11 AM/5.5 AM and were subsequently reflected in the flesh. Fish fed the 11 AM diet contained similar DHA levels (g 100 g(-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. SN - 1873-7072 UR - https://www.unboundmedicine.com/medline/citation/25952887/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_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0308-8146(15)00544-0 DB - PRIME DP - Unbound Medicine ER -