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Reducing the lipid content in fish prior to feeding a fish oil finishing diet (FOFD) has the potential to improve n-3 long-chain (≥C₂₀) polyunsaturated fatty acid (LC-PUFA) restoration. This study had two main objectives: (1) determine whether feeding Atlantic salmon smolt a 75% palm fatty acid distillate diet (75PFAD) improves the apparent digestibility (AD) of saturated fatty acids (SFA) and (2) examine whether a food deprivation period after growth on 75PFAD leads to higher n-3 LC-PUFA restoration in the fillet when applying a FOFD. The AD of SFA was higher for 75PFAD compared to that of a fish oil (FO) diet. The relative level (as % total fatty acids (FA)) of n-3 LC-PUFA was higher in unfed fish compared to that in continuously fed fish after 21 and 28 day FOFD periods, respectively. Our results suggest that a food deprivation period prior to feeding a FOFD improves the efficiency of n-3 LC-PUFA restoration in the fillet of Atlantic salmon smolt.

Item Type:	Refereed Article
Keywords:	fish oil finishing diet, palm fatty acid distillate, apparent digestibility, food deprivation, Atlantic salmon
Research Division:	Agricultural, Veterinary and Food Sciences
Research Group:	Fisheries sciences
Research Field:	Aquaculture
Objective Division:	Animal Production and Animal Primary Products
Objective Group:	Fisheries - aquaculture
Objective Field:	Aquaculture crustaceans (excl. rock lobster and prawns)
UTAS Author:	Codabaccus, MB (Dr Basseer Codabaccus)
UTAS Author:	Bridle, AR (Associate Professor Andrew Bridle)
UTAS Author:	Carter, CG (Professor Chris Carter)
ID Code:	77699
Year Published:	2012
Web of Science® Times Cited:	12
Deposited By:	NC Marine Conservation and Resource Sustainability
Deposited On:	2012-05-17
Last Modified:	2017-11-03
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