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Regiospecificity Profiles of Storage and Membrane Lipids from the Gill and Muscle Tissue of Atlantic Salmon (Salmo salarL.) Grown at Elevated Temperature

Citation

Miller, MR and Nichols, PD and Barnes, JC and Davies, NW and Peacock, EJ and Carter, CG, Regiospecificity Profiles of Storage and Membrane Lipids from the Gill and Muscle Tissue of Atlantic Salmon (Salmo salarL.) Grown at Elevated Temperature, Lipids, 41, (9) pp. 865-876. ISSN 0024-4201 (2006) [Refereed Article]

DOI: doi:10.1007/s11745-006-5042-5

Abstract

Regiospecific and traditional analysis, of both storage and membrane lipids, was performed on gill, white muscle, and red muscle samples taken from Atlantic salmon (Salmo salar) to gauge the effect of elevated water temperature. The fish, fed a commercial diet, were held at an elevated water temperature of 19°C. Total n-3 PUFA, total PUFA, and n-3/n-6 and unsaturated/saturated fatty acid (UFA/SFA) ratios in the FA profile of the total lipid extract in the white muscle were fairly low compared with fish grown at 15°C. Adaptation of structural and storage lipids at elevated temperatures was shown by a significant (P < 0.01) reduction in PUFA especially in the percentage of EPA (6-8%). Further adaptation, was indicated by the percentages of SFA, which were significantly (P < 0.05) higher in gill (56%) and white muscle (58%) polar lipid fractions and coincided with lower percentages of n-3, n-6, and total PUFA. The regiospecific profiles indicated a high affinity of DHA to the sn-2 position in both the TAG (61-68%) and polar lipid (35-60%) fractions. The combination of detailed regiospecific and lipid analyses demonstrated adaptation of cell membrane structure in Atlantic salmon grown at an elevated water temperature. Copyright © 2006 by AOCS Press.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquaculture
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Fisheries - Aquaculture not elsewhere classified
Author:Miller, MR (Dr Matthew Miller)
Author:Barnes, JC (Ms Julia Barnes)
Author:Davies, NW (Associate Professor Noel Davies)
Author:Peacock, EJ (Dr Evan Peacock)
Author:Carter, CG (Professor Chris Carter)
ID Code:41554
Year Published:2006
Web of Science® Times Cited:39
Deposited By:TAFI - Aquaculture
Deposited On:2006-08-01
Last Modified:2007-03-27
Downloads:0

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