University of Stirling    STORRE: Stirling Online Research Repository University Circle Images   Research Led, Student Focused  
 

STORRE >
School of Natural Sciences >
Aquaculture >
Aquaculture Journal Articles >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/2784

Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: The use of palm oil in aquaculture feeds for salmonid species
Author(s): Ng, Wing–Keong
Tocher, Douglas R
Bell, J Gordon
Contact Email: drt1@stir.ac.uk
Keywords: salmon
trout
aquaculture
feeds
palm oil
fish oil
digestibility
temperature
Issue Date: Apr-2007
Publisher: Wiley-Blackwell
Citation: Ng W, Tocher DR & Bell JG (2007) The use of palm oil in aquaculture feeds for salmonid species, European Journal of Lipid Science and Technology, 109 (4), pp. 394-399.
Abstract: In this overview, our current knowledge and research being conducted on the use of palm oil in the commercial feeds for cold-water salmonid species such as Atlantic salmon and rainbow trout will be highlighted. Salmonids have a high requirement for lipid as a source of energy and n-3 polyunsaturated fatty acids (PUFA) to maintain membrane fluidity in a cold water environment. The culture of salmonid fishes has traditionally depended on marine fish oils for this purpose but with limited supplies and the rapid increase in salmon production, alternatives to fish oils must be investigated. Research has shown that crude palm oil can be used to replace 100% of added fish oils in salmonid diets without compromising growth performance and feed utilization efficiency despite reductions in lipid and fatty acid digestibilities that occurs during low water temperatures in the winter rearing season. Fatty acid desaturation and elongation activities increased with increasing dietary palm oil and to a certain extent, decreasing water temperatures. The effects of palm oil on fish health requires further research but the use of this more saturated vegetable oil may reduce oxidative stress in fish thereby reducing pathological conditions associated with this physiological state. It is generally known that fish fillet fatty acid composition directly reflects that of the dietary oil used. Extrapolating from work done with other vegetable oils, the supply of beneficial n-3 (omega-3) PUFA in salmon fillets to the human consumer can be maintained by using a “wash-out” feeding strategy just prior to harvesting despite significant reductions in these fatty acids when high levels of dietary palm oil are used to feed fish. The use of palm oil can also add additional benefits to fillet quality and health benefits to the consumer due to the potential bioaccumulation of tocopherols and tocotrienols in salmon flesh and minimizing the deposition of undersirable fatty acids such as 18:2(n-6). Fillet texture and color were not affected by feeding salmon palm oil-based diets.
Type: Journal Article
URI: http://hdl.handle.net/1893/2784
URL: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1438-9312
DOI Link: http://dx.doi.org/10.1002/ejlt.200600209
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author; you can only request a copy if you wish to use this work for your own research or private study.
Affiliation: University of Science, Malaysia (USM)
Aquaculture
Aquaculture

Files in This Item:

File Description SizeFormat
CPO-salmonidsreview.pdf343.37 kBAdobe PDFUnder Embargo until 31/12/2999 Restricted Access. Click to Request a copy from the author!

Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependant on the depositor still being contactable at their original email address.

This item is protected by original copyright

Recommend this item

Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.

 

Valid XHTML 1.0! Repository Service Operated by Information Services, University of Stirling
Powered by DSpace Software Copyright © 2002-2010  Duraspace - Feedback