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.
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| 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. |
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| Authors: | Sprague, M.1 matthew.sprague@stir.ac.uk, Walton, J.2, Campbell, P.J.2, Strachan, F.1, Dick, J.R.1, Bell, J.G.1 |
| Source: | Food Chemistry. Oct2015, Vol. 185, p413-421. 9p. |
| Subjects: | Fish oils, Pollutants, Atlantic salmon, Unsaturated fatty acids, Cell culture, Comparative studies |
| 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 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. [ABSTRACT FROM AUTHOR] |
| Copyright of Food Chemistry is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 102462878 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: 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. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Sprague%2C+M%2E%22">Sprague, M.</searchLink><relatesTo>1</relatesTo><i> matthew.sprague@stir.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Walton%2C+J%2E%22">Walton, J.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Campbell%2C+P%2EJ%2E%22">Campbell, P.J.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Strachan%2C+F%2E%22">Strachan, F.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dick%2C+J%2ER%2E%22">Dick, J.R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bell%2C+J%2EG%2E%22">Bell, J.G.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Food+Chemistry%22">Food Chemistry</searchLink>. Oct2015, Vol. 185, p413-421. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Fish+oils%22">Fish oils</searchLink><br /><searchLink fieldCode="DE" term="%22Pollutants%22">Pollutants</searchLink><br /><searchLink fieldCode="DE" term="%22Atlantic+salmon%22">Atlantic salmon</searchLink><br /><searchLink fieldCode="DE" term="%22Unsaturated+fatty+acids%22">Unsaturated fatty acids</searchLink><br /><searchLink fieldCode="DE" term="%22Cell+culture%22">Cell culture</searchLink><br /><searchLink fieldCode="DE" term="%22Comparative+studies%22">Comparative studies</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: 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 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. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Food Chemistry is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.foodchem.2015.03.150 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 413 Subjects: – SubjectFull: Fish oils Type: general – SubjectFull: Pollutants Type: general – SubjectFull: Atlantic salmon Type: general – SubjectFull: Unsaturated fatty acids Type: general – SubjectFull: Cell culture Type: general – SubjectFull: Comparative studies Type: general Titles: – TitleFull: 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. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Sprague, M. – PersonEntity: Name: NameFull: Walton, J. – PersonEntity: Name: NameFull: Campbell, P.J. – PersonEntity: Name: NameFull: Strachan, F. – PersonEntity: Name: NameFull: Dick, J.R. – PersonEntity: Name: NameFull: Bell, J.G. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 10 Text: Oct2015 Type: published Y: 2015 Identifiers: – Type: issn-print Value: 03088146 Numbering: – Type: volume Value: 185 Titles: – TitleFull: Food Chemistry Type: main |
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