Influences of dietary n−3 long-chain PUFA on body concentrations of 20∶5n−3, 22∶5n−3, and 22∶6n−3 in the larvae of a marine teleost fish from Australian waters, the striped trumpeter (Latris lineata)

M P Bransden; G A Dunstan; S C Battaglene; Jennifer M Cobcroft; D T Morehead; S Kolkovski; P D Nicols

doi:10.1007/s11745-004-1222-6

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Influences of dietary n−3 long-chain PUFA on body concentrations of 20∶5n−3, 22∶5n−3, and 22∶6n−3 in the larvae of a marine teleost fish from Australian waters, the striped trumpeter (Latris lineata)

Journal article

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Influences of dietary n−3 long-chain PUFA on body concentrations of 20∶5n−3, 22∶5n−3, and 22∶6n−3 in the larvae of a marine teleost fish from Australian waters, the striped trumpeter (Latris lineata)

M P Bransden, G A Dunstan, S C Battaglene, Jennifer M Cobcroft, D T Morehead, S Kolkovski and P D Nicols

Lipids, Vol.39(3), pp.215-222

2004

DOI: https://doi.org/10.1007/s11745-004-1222-6

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Abstract

Medical and Health Sciences

Agricultural and Veterinary Sciences

Engineering

PUFA (LC-PUFA), 20âˆ¶5n-3 and 22âˆ¶6n-3, on larval striped trumpeter (Latris lineata) biochemistry through early development and during live feeding with rotifers (Brachionus plicatilis). Rotifers were enriched using seven experimental emulsions formulated with increasing concentrations of n-3 LC-PUFA, mainly 20âˆ¶5n-3 and 22âˆ¶6n-3. Enriched rotifer n-3 LC-PUFA concentrations ranged from 10-30 mg/g dry matter. Enriched rotifers were fed to striped trumpeter larvae from 5 to 18 d post-hatch (dph) in a short-term experiment to minimize gross deficiency symptoms such as poor survival that could confound results. No relationships were observed between larval growth or survival with dietary n-3 LC-PUFA at 18 dph. The larval FA profiles generally reflected those of the rotifer diet, and significant positive regressions were observed between most dietary and larval FA at 10, 14, and 18 dph. The major exception observed was an inverse relationship between dietary and larval 22âˆ¶5n-3. The presence of 22âˆ¶5n-3 in elevated amounts when dietary 22âˆ¶5n-3. The presence of 22âˆ¶5n-3 in elevated amounts when dietary 22âˆ¶6n-3 was depressed suggests that elongation of 20âˆ¶5n-3 may be occurring in an attempt to raise body concentrations of 22âˆ¶6n-3. We hypothesize that accumulation of 22âˆ¶5n-3 might be an early indicator of 22âˆ¶6n-3 deficiency in larval fish that precedes a reduction in growth or survival. A possible role of 22âˆ¶5n-3 as a biochemical surrogate for 22âˆ¶6n-3 is discussed.

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Title: Influences of dietary n−3 long-chain PUFA on body concentrations of 20∶5n−3, 22∶5n−3, and 22∶6n−3 in the larvae of a marine teleost fish from Australian waters, the striped trumpeter (Latris lineata)
Authors: M P Bransden (Author) - University of Tasmania
G A Dunstan (Author) - CSIRO
S C Battaglene (Author) - University of Tasmania
Jennifer M Cobcroft (Author) - University of Tasmania
D T Morehead (Author) - University of Tasmania
S Kolkovski (Author) - CSIRO
P D Nicols (Author) - CSIRO
Publication details: Lipids, Vol.39(3), pp.215-222
Publisher: Springer
Date published: 2004
DOI: 10.1007/s11745-004-1222-6
ISSN: 0024-4201
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99450131402621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Biochemistry & Molecular Biology; Nutrition & Dietetics