Dietary lipid source modulates in vivo fatty acid metabolism in the freshwater fish, Murray cod (Maccullochella peelii peelii)
The aim of the present investigation was to quantify the fate of C18 and long chain polyunsaturated dietary fatty acids in the freshwater fish, Murray cod, using the in vivo, whole-body fatty acid balance method. Juvenile Murray cod were fed one of five iso-nitrogenous, iso-energetic, semipurified e...
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ftdeakinunifig:oai:figshare.com:article/20553105 2023-05-15T18:09:57+02:00 Dietary lipid source modulates in vivo fatty acid metabolism in the freshwater fish, Murray cod (Maccullochella peelii peelii) David Francis Giovanni Turchini Paul Jones S De Silva 2007-01-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30007067 https://figshare.com/articles/journal_contribution/Dietary_lipid_source_modulates_in_vivo_fatty_acid_metabolism_in_the_freshwater_fish_Murray_cod_Maccullochella_peelii_peelii_/20553105 unknown http://hdl.handle.net/10536/DRO/DU:30007067 https://figshare.com/articles/journal_contribution/Dietary_lipid_source_modulates_in_vivo_fatty_acid_metabolism_in_the_freshwater_fish_Murray_cod_Maccullochella_peelii_peelii_/20553105 All Rights Reserved Uncategorized maccullochella peelii peelii whole-body fatty acid balance method linoleic acid EPA DHA Science & Technology Life Sciences & Biomedicine Physical Sciences Agriculture Multidisciplinary Chemistry Applied Food Science & Technology alpha-linolenic acid SALMON SALMO-SALAR TISSUE COMPOSITION VEGETABLE-OIL RAPESEED OIL PERFORMANCE GROWTH LIVER BIOSYNTHESIS EXPRESSION OXIDATION Text Journal contribution 2007 ftdeakinunifig 2022-11-17T23:12:58Z The aim of the present investigation was to quantify the fate of C18 and long chain polyunsaturated dietary fatty acids in the freshwater fish, Murray cod, using the in vivo, whole-body fatty acid balance method. Juvenile Murray cod were fed one of five iso-nitrogenous, iso-energetic, semipurified experimental diets in which the dietary fish oil (FO) was replaced (0, 25, 50, 75, and 100%) with a blended vegetable oil (VO), specifically formulated to match the major fatty acid classes [saturated fatty acids, monounsaturated fatty acids, n-3 polyunsaturated fatty acids (PUFA), and n-6 PUFA] of cod liver oil (FO). However, the PUFA fraction of the VO was dominated by C18 fatty acids, while C20/22 fatty acids were prevalent in the FO PUFA fraction. Generally, there was a clear reflection of the dietary fatty acid composition across each of the five treatments in the carcass, fillet, and liver. Lipid metabolism was affected by the modification of the dietary lipid source. The desaturation and elongation of C18 PUFAs increased with vegetable oil substitution, supported by the occurrence of longer and higher desaturated homologous fatty acids. However, increased elongase and desaturase activity is unlikely to fulfill the gap observed in fatty acid composition resulting from decreased highly unsaturated fatty acids intake. Other Non-Article Part of Journal/Newspaper Salmo salar DRO - Deakin Research Online |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Uncategorized maccullochella peelii peelii whole-body fatty acid balance method linoleic acid EPA DHA Science & Technology Life Sciences & Biomedicine Physical Sciences Agriculture Multidisciplinary Chemistry Applied Food Science & Technology alpha-linolenic acid SALMON SALMO-SALAR TISSUE COMPOSITION VEGETABLE-OIL RAPESEED OIL PERFORMANCE GROWTH LIVER BIOSYNTHESIS EXPRESSION OXIDATION |
spellingShingle |
Uncategorized maccullochella peelii peelii whole-body fatty acid balance method linoleic acid EPA DHA Science & Technology Life Sciences & Biomedicine Physical Sciences Agriculture Multidisciplinary Chemistry Applied Food Science & Technology alpha-linolenic acid SALMON SALMO-SALAR TISSUE COMPOSITION VEGETABLE-OIL RAPESEED OIL PERFORMANCE GROWTH LIVER BIOSYNTHESIS EXPRESSION OXIDATION David Francis Giovanni Turchini Paul Jones S De Silva Dietary lipid source modulates in vivo fatty acid metabolism in the freshwater fish, Murray cod (Maccullochella peelii peelii) |
topic_facet |
Uncategorized maccullochella peelii peelii whole-body fatty acid balance method linoleic acid EPA DHA Science & Technology Life Sciences & Biomedicine Physical Sciences Agriculture Multidisciplinary Chemistry Applied Food Science & Technology alpha-linolenic acid SALMON SALMO-SALAR TISSUE COMPOSITION VEGETABLE-OIL RAPESEED OIL PERFORMANCE GROWTH LIVER BIOSYNTHESIS EXPRESSION OXIDATION |
description |
The aim of the present investigation was to quantify the fate of C18 and long chain polyunsaturated dietary fatty acids in the freshwater fish, Murray cod, using the in vivo, whole-body fatty acid balance method. Juvenile Murray cod were fed one of five iso-nitrogenous, iso-energetic, semipurified experimental diets in which the dietary fish oil (FO) was replaced (0, 25, 50, 75, and 100%) with a blended vegetable oil (VO), specifically formulated to match the major fatty acid classes [saturated fatty acids, monounsaturated fatty acids, n-3 polyunsaturated fatty acids (PUFA), and n-6 PUFA] of cod liver oil (FO). However, the PUFA fraction of the VO was dominated by C18 fatty acids, while C20/22 fatty acids were prevalent in the FO PUFA fraction. Generally, there was a clear reflection of the dietary fatty acid composition across each of the five treatments in the carcass, fillet, and liver. Lipid metabolism was affected by the modification of the dietary lipid source. The desaturation and elongation of C18 PUFAs increased with vegetable oil substitution, supported by the occurrence of longer and higher desaturated homologous fatty acids. However, increased elongase and desaturase activity is unlikely to fulfill the gap observed in fatty acid composition resulting from decreased highly unsaturated fatty acids intake. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
David Francis Giovanni Turchini Paul Jones S De Silva |
author_facet |
David Francis Giovanni Turchini Paul Jones S De Silva |
author_sort |
David Francis |
title |
Dietary lipid source modulates in vivo fatty acid metabolism in the freshwater fish, Murray cod (Maccullochella peelii peelii) |
title_short |
Dietary lipid source modulates in vivo fatty acid metabolism in the freshwater fish, Murray cod (Maccullochella peelii peelii) |
title_full |
Dietary lipid source modulates in vivo fatty acid metabolism in the freshwater fish, Murray cod (Maccullochella peelii peelii) |
title_fullStr |
Dietary lipid source modulates in vivo fatty acid metabolism in the freshwater fish, Murray cod (Maccullochella peelii peelii) |
title_full_unstemmed |
Dietary lipid source modulates in vivo fatty acid metabolism in the freshwater fish, Murray cod (Maccullochella peelii peelii) |
title_sort |
dietary lipid source modulates in vivo fatty acid metabolism in the freshwater fish, murray cod (maccullochella peelii peelii) |
publishDate |
2007 |
url |
http://hdl.handle.net/10536/DRO/DU:30007067 https://figshare.com/articles/journal_contribution/Dietary_lipid_source_modulates_in_vivo_fatty_acid_metabolism_in_the_freshwater_fish_Murray_cod_Maccullochella_peelii_peelii_/20553105 |
genre |
Salmo salar |
genre_facet |
Salmo salar |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30007067 https://figshare.com/articles/journal_contribution/Dietary_lipid_source_modulates_in_vivo_fatty_acid_metabolism_in_the_freshwater_fish_Murray_cod_Maccullochella_peelii_peelii_/20553105 |
op_rights |
All Rights Reserved |
_version_ |
1766182662231293952 |