Effects of Replacement of Fish Oil with Microbial Oil ( Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues
A 16-week feeding trial was conducted to investigate effects of replacing dietary fish oil (FO) with docosahexaenoic acid (DHA)-rich microbial oil (MO) from Schizochytrium sp. (T18) on membrane lipid composition of Atlantic salmon parr liver and muscle tissues. Four nutritionally balanced diets were...
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MDPI AG
2023
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ftdoajarticles:oai:doaj.org/article:9ab3d592725f45a99f15714139fe63be 2023-05-15T15:30:32+02:00 Effects of Replacement of Fish Oil with Microbial Oil ( Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues Nigel Guerra Christopher C. Parrish Minmin Wei Judy Perry Roberto E. Armenta Stefanie M. Colombo 2023-03-01T00:00:00Z https://doi.org/10.3390/su15054594 https://doaj.org/article/9ab3d592725f45a99f15714139fe63be EN eng MDPI AG https://www.mdpi.com/2071-1050/15/5/4594 https://doaj.org/toc/2071-1050 doi:10.3390/su15054594 2071-1050 https://doaj.org/article/9ab3d592725f45a99f15714139fe63be Sustainability, Vol 15, Iss 4594, p 4594 (2023) Atlantic salmon fish oil microbial oil ( Schizochytrium sp. T18) EPA DHA ARA 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/su15054594 2023-03-12T01:28:48Z A 16-week feeding trial was conducted to investigate effects of replacing dietary fish oil (FO) with docosahexaenoic acid (DHA)-rich microbial oil (MO) from Schizochytrium sp. (T18) on membrane lipid composition of Atlantic salmon parr liver and muscle tissues. Four nutritionally balanced diets were formulated with varying levels of FO, MO, and canola oil (CO), including a control diet with 20% FO, a secondary control diet with 10% FO and 10% CO, and two experimental diets that completely replaced FO with a low (5%) and high (10%) proportion of MO. No significant differences were observed in growth parameters (81–98 g; weight gain), total lipid class composition, and total sterol content among the dietary treatments. However, there were significant differences in the proportions of individual ꞷ3 and ꞷ6 fatty acids in both liver and muscle tissues, reflecting the different dietary treatments. Notably, the presence of low eicosapentaenoic acid (EPA) in the MO diets did not affect the growth performance of the fish, suggesting a lower requirement for EPA in the diet and a greater necessity for DHA. The results also showed that DHA was present in very high proportions in the cellular membrane, particularly in muscle tissue, with low levels of linoleic acid and alpha-linolenic acid. Overall, the findings suggest that MO derived from Schizochytrium sp. (T18) could be a potential substitute for FO in the diet of farmed Atlantic salmon. Article in Journal/Newspaper Atlantic salmon Directory of Open Access Journals: DOAJ Articles Sustainability 15 5 4594 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Atlantic salmon fish oil microbial oil ( Schizochytrium sp. T18) EPA DHA ARA Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 |
spellingShingle |
Atlantic salmon fish oil microbial oil ( Schizochytrium sp. T18) EPA DHA ARA 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 Roberto E. Armenta Stefanie M. Colombo Effects of Replacement of Fish Oil with Microbial Oil ( Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues |
topic_facet |
Atlantic salmon fish oil microbial oil ( Schizochytrium sp. T18) EPA DHA ARA Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 |
description |
A 16-week feeding trial was conducted to investigate effects of replacing dietary fish oil (FO) with docosahexaenoic acid (DHA)-rich microbial oil (MO) from Schizochytrium sp. (T18) on membrane lipid composition of Atlantic salmon parr liver and muscle tissues. Four nutritionally balanced diets were formulated with varying levels of FO, MO, and canola oil (CO), including a control diet with 20% FO, a secondary control diet with 10% FO and 10% CO, and two experimental diets that completely replaced FO with a low (5%) and high (10%) proportion of MO. No significant differences were observed in growth parameters (81–98 g; weight gain), total lipid class composition, and total sterol content among the dietary treatments. However, there were significant differences in the proportions of individual ꞷ3 and ꞷ6 fatty acids in both liver and muscle tissues, reflecting the different dietary treatments. Notably, the presence of low eicosapentaenoic acid (EPA) in the MO diets did not affect the growth performance of the fish, suggesting a lower requirement for EPA in the diet and a greater necessity for DHA. The results also showed that DHA was present in very high proportions in the cellular membrane, particularly in muscle tissue, with low levels of linoleic acid and alpha-linolenic acid. Overall, the findings suggest that MO derived from Schizochytrium sp. (T18) could be a potential substitute for FO in the diet of farmed Atlantic salmon. |
format |
Article in Journal/Newspaper |
author |
Nigel Guerra Christopher C. Parrish Minmin Wei Judy Perry Roberto E. Armenta Stefanie M. Colombo |
author_facet |
Nigel Guerra Christopher C. Parrish Minmin Wei Judy Perry Roberto E. Armenta Stefanie M. Colombo |
author_sort |
Nigel Guerra |
title |
Effects of Replacement of Fish Oil with Microbial Oil ( Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues |
title_short |
Effects of Replacement of Fish Oil with Microbial Oil ( Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues |
title_full |
Effects of Replacement of Fish Oil with Microbial Oil ( Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues |
title_fullStr |
Effects of Replacement of Fish Oil with Microbial Oil ( Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues |
title_full_unstemmed |
Effects of Replacement of Fish Oil with Microbial Oil ( Schizochytrium sp. T18) on Membrane Lipid Composition of Atlantic Salmon Parr Muscle and Liver Tissues |
title_sort |
effects of replacement of fish oil with microbial oil ( schizochytrium sp. t18) on membrane lipid composition of atlantic salmon parr muscle and liver tissues |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/su15054594 https://doaj.org/article/9ab3d592725f45a99f15714139fe63be |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Sustainability, Vol 15, Iss 4594, p 4594 (2023) |
op_relation |
https://www.mdpi.com/2071-1050/15/5/4594 https://doaj.org/toc/2071-1050 doi:10.3390/su15054594 2071-1050 https://doaj.org/article/9ab3d592725f45a99f15714139fe63be |
op_doi |
https://doi.org/10.3390/su15054594 |
container_title |
Sustainability |
container_volume |
15 |
container_issue |
5 |
container_start_page |
4594 |
_version_ |
1766360982280470528 |