Effects of Replacing Fishmeal with Algal Biomass ( Pavlova sp. 459) on Membrane Lipid Composition of Atlantic Salmon ( Salmo salar ) Parr Muscle and Liver Tissues
A 12-week feeding trial examined the dietary impact of replacing fishmeal (FM) with algal biomass (AB) derived from Pavlova sp. strain CCMP459 ( Pav 459) in Atlantic salmon diets. Three distinct diets were formulated: a control diet featuring 20% FM and 7% fish oil (FO), an experimental diet incorpo...
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2023
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ftdoajarticles:oai:doaj.org/article:adfd90a23f714587a74a030bca8ad845 2024-01-21T10:04:33+01:00 Effects of Replacing Fishmeal with Algal Biomass ( Pavlova sp. 459) on Membrane Lipid Composition of Atlantic Salmon ( Salmo salar ) Parr Muscle and Liver Tissues Nigel Guerra Christopher C. Parrish Minmin Wei Judy Perry Jorge A. Del Ángel-Rodríguez Sean M. Tibbetts Mohamed Emam Stefanie M. Colombo 2023-12-01T00:00:00Z https://doi.org/10.3390/su152416599 https://doaj.org/article/adfd90a23f714587a74a030bca8ad845 EN eng MDPI AG https://www.mdpi.com/2071-1050/15/24/16599 https://doaj.org/toc/2071-1050 doi:10.3390/su152416599 2071-1050 https://doaj.org/article/adfd90a23f714587a74a030bca8ad845 Sustainability, Vol 15, Iss 24, p 16599 (2023) Atlantic salmon fishmeal algal biomass Pavlova sp. 459 EPA DHA Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 article 2023 ftdoajarticles https://doi.org/10.3390/su152416599 2023-12-24T01:36:15Z A 12-week feeding trial examined the dietary impact of replacing fishmeal (FM) with algal biomass (AB) derived from Pavlova sp. strain CCMP459 ( Pav 459) in Atlantic salmon diets. Three distinct diets were formulated: a control diet featuring 20% FM and 7% fish oil (FO), an experimental diet incorporating a 50:50 blend of FM and AB Pav 459 and reduced FO (10% FM; 4.5% FO; 10% AB), and a second experimental diet with full replacement of FM with AB Pav 459 and further reduction in FO (1.75% FO; 20% AB). Replacing FM with AB Pav 459 showed no significant effects on the growth performance of Atlantic salmon. Fish across all diets exhibited growth exceeding 200% from their initial weight. Analysis of total lipid content after the 12-week trial revealed no significant differences among the diets. However, individual proportions of omega-3 (ω3) and omega-6 (ω6) fatty acids varied. Fatty acid profiling in muscle and liver tissues showed distinct compositions reflective of dietary treatments. Linoleic acid (LA) and α-linolenic acid (ALA) exhibited higher proportions in total fatty acids than in membrane lipids. Docosahexaenoic acid (DHA) emerged as the predominant fatty acid in the membranes of both liver and muscle tissues. Furthermore, an analysis of sterol composition in Pavlova and salmon muscle tissue showed the presence of important sterols, including conventionally animal-associated cholesterol. This emphasizes the suitability of microorganisms, such as Pav 459, for synthesizing diverse nutrients. Stable isotope analysis demonstrated direct incorporation of eicosapentaenoic acid (EPA) and DHA from diets into salmon tissues. Notably, minimal biosynthesis from the precursor ALA was observed, reaffirming the utility of Pav 459-derived fatty acids. The EPA+DHA proportions in the fillet consistently met daily human consumption requirements across all dietary conditions, supporting the use of Pav 459 algal biomass as an alternative to FM. Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles Sustainability 15 24 16599 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Atlantic salmon fishmeal algal biomass Pavlova sp. 459 EPA DHA Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 |
spellingShingle |
Atlantic salmon fishmeal algal biomass Pavlova sp. 459 EPA DHA Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 Nigel Guerra Christopher C. Parrish Minmin Wei Judy Perry Jorge A. Del Ángel-Rodríguez Sean M. Tibbetts Mohamed Emam Stefanie M. Colombo Effects of Replacing Fishmeal with Algal Biomass ( Pavlova sp. 459) on Membrane Lipid Composition of Atlantic Salmon ( Salmo salar ) Parr Muscle and Liver Tissues |
topic_facet |
Atlantic salmon fishmeal algal biomass Pavlova sp. 459 EPA DHA Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 |
description |
A 12-week feeding trial examined the dietary impact of replacing fishmeal (FM) with algal biomass (AB) derived from Pavlova sp. strain CCMP459 ( Pav 459) in Atlantic salmon diets. Three distinct diets were formulated: a control diet featuring 20% FM and 7% fish oil (FO), an experimental diet incorporating a 50:50 blend of FM and AB Pav 459 and reduced FO (10% FM; 4.5% FO; 10% AB), and a second experimental diet with full replacement of FM with AB Pav 459 and further reduction in FO (1.75% FO; 20% AB). Replacing FM with AB Pav 459 showed no significant effects on the growth performance of Atlantic salmon. Fish across all diets exhibited growth exceeding 200% from their initial weight. Analysis of total lipid content after the 12-week trial revealed no significant differences among the diets. However, individual proportions of omega-3 (ω3) and omega-6 (ω6) fatty acids varied. Fatty acid profiling in muscle and liver tissues showed distinct compositions reflective of dietary treatments. Linoleic acid (LA) and α-linolenic acid (ALA) exhibited higher proportions in total fatty acids than in membrane lipids. Docosahexaenoic acid (DHA) emerged as the predominant fatty acid in the membranes of both liver and muscle tissues. Furthermore, an analysis of sterol composition in Pavlova and salmon muscle tissue showed the presence of important sterols, including conventionally animal-associated cholesterol. This emphasizes the suitability of microorganisms, such as Pav 459, for synthesizing diverse nutrients. Stable isotope analysis demonstrated direct incorporation of eicosapentaenoic acid (EPA) and DHA from diets into salmon tissues. Notably, minimal biosynthesis from the precursor ALA was observed, reaffirming the utility of Pav 459-derived fatty acids. The EPA+DHA proportions in the fillet consistently met daily human consumption requirements across all dietary conditions, supporting the use of Pav 459 algal biomass as an alternative to FM. |
format |
Article in Journal/Newspaper |
author |
Nigel Guerra Christopher C. Parrish Minmin Wei Judy Perry Jorge A. Del Ángel-Rodríguez Sean M. Tibbetts Mohamed Emam Stefanie M. Colombo |
author_facet |
Nigel Guerra Christopher C. Parrish Minmin Wei Judy Perry Jorge A. Del Ángel-Rodríguez Sean M. Tibbetts Mohamed Emam Stefanie M. Colombo |
author_sort |
Nigel Guerra |
title |
Effects of Replacing Fishmeal with Algal Biomass ( Pavlova sp. 459) on Membrane Lipid Composition of Atlantic Salmon ( Salmo salar ) Parr Muscle and Liver Tissues |
title_short |
Effects of Replacing Fishmeal with Algal Biomass ( Pavlova sp. 459) on Membrane Lipid Composition of Atlantic Salmon ( Salmo salar ) Parr Muscle and Liver Tissues |
title_full |
Effects of Replacing Fishmeal with Algal Biomass ( Pavlova sp. 459) on Membrane Lipid Composition of Atlantic Salmon ( Salmo salar ) Parr Muscle and Liver Tissues |
title_fullStr |
Effects of Replacing Fishmeal with Algal Biomass ( Pavlova sp. 459) on Membrane Lipid Composition of Atlantic Salmon ( Salmo salar ) Parr Muscle and Liver Tissues |
title_full_unstemmed |
Effects of Replacing Fishmeal with Algal Biomass ( Pavlova sp. 459) on Membrane Lipid Composition of Atlantic Salmon ( Salmo salar ) Parr Muscle and Liver Tissues |
title_sort |
effects of replacing fishmeal with algal biomass ( pavlova sp. 459) on membrane lipid composition of atlantic salmon ( salmo salar ) parr muscle and liver tissues |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/su152416599 https://doaj.org/article/adfd90a23f714587a74a030bca8ad845 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Sustainability, Vol 15, Iss 24, p 16599 (2023) |
op_relation |
https://www.mdpi.com/2071-1050/15/24/16599 https://doaj.org/toc/2071-1050 doi:10.3390/su152416599 2071-1050 https://doaj.org/article/adfd90a23f714587a74a030bca8ad845 |
op_doi |
https://doi.org/10.3390/su152416599 |
container_title |
Sustainability |
container_volume |
15 |
container_issue |
24 |
container_start_page |
16599 |
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1788694928078929920 |