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Effect of dietary saturated and monounsaturated fatty acids in juvenile barramundi Lates calcarifer

Salini, M.J., Turchini, G.M. and Glencross, BD 2017, Effect of dietary saturated and monounsaturated fatty acids in juvenile barramundi Lates calcarifer, Aquaculture nutrition, vol. 23, no. 2, pp. 264-275, doi: 10.1111/anu.12389.

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Title Effect of dietary saturated and monounsaturated fatty acids in juvenile barramundi Lates calcarifer
Author(s) Salini, M.J.
Turchini, G.M.ORCID iD for Turchini, G.M. orcid.org/0000-0003-0694-4283
Glencross, BD
Journal name Aquaculture nutrition
Volume number 23
Issue number 2
Start page 264
End page 275
Total pages 12
Publisher Wiley
Place of publication London, Eng.
Publication date 2017-04
ISSN 1353-5773
1365-2095
Keyword(s) Science & Technology
Life Sciences & Biomedicine
Fisheries
barramundi
fatty acid
metabolism
monoun-saturated fatty acids
saturated fatty acids
beta-oxidation
SALMON SALMO-SALAR
FISH-OIL REPLACEMENT
ATLANTIC SALMON
PALM OIL
RAINBOW-TROUT
LIPID SOURCES
RAPESEED OIL
SEA BASS
CROMILEPTES-ALTIVELIS
ONCORHYNCHUS-MYKISS
Summary Barramundi (Lates calcarifer), a catadromous teleost of commercial interest, perform well when fed a wide range of dietary oils. However, the range of alternative oils now being explored is typically rich in saturated and monounsaturated fatty acids (SFA and MUFA). In this study, the response of juvenile barramundi (47.0 g per fish initial weight) fed isolipidic and isoenergetic diets with 82 g kg−1 added oil was tested. The experimental test diets had a 2 : 1 or 1 : 2 ratio of SFA to MUFA (SFA-D and MUFA-D, respectively) compared to a control diet (CTRL-D) fed for 8 weeks. The diets containing mostly olive oil (dietary MUFA-D) and mostly refined palm oil (dietary SFA-D) did not impact the growth performance or feed utilization parameters of the barramundi. The in vivo beta-oxidation activity was consistent with the dietary fatty acid composition, with the most dominant FA being heavily beta-oxidized. Together, the in vivo whole-body mass balance of fatty acids showed that n-3 long-chain polyunsaturated fatty acids (LC-PUFA) were most efficiently utilized in the SFA-D- and MUFA-D-fed fish. This study provides evidence that additional dietary MUFA and SFA are suitable lipid classes for juvenile barramundi and they are both equally efficient at sparing LC-PUFA from an oxidative fate.
Language eng
DOI 10.1111/anu.12389
Field of Research 070401 Aquaculture
0704 Fisheries Sciences
Socio Economic Objective 830102 Aquaculture Fin Fish (excl. Tuna)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, John Wiley & Sons
Persistent URL http://hdl.handle.net/10536/DRO/DU:30081489

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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