Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/25271
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: The effect of marine and non-marine phospholipid rich oils when fed to juvenile barramundi (Lates calcarifer)
Authors: Salini, Michael J
Wade, Nicholas M
Bourne, Nicholas
Turchini, Giovanni M
Glencross, Brett
Keywords: Phospholipid
Barramundi
Krill oil
Soybean oil
Soybean lecithin
Issue Date: 20-Mar-2016
Citation: Salini MJ, Wade NM, Bourne N, Turchini GM & Glencross B (2016) The effect of marine and non-marine phospholipid rich oils when fed to juvenile barramundi (Lates calcarifer), Aquaculture, 455, pp. 125-135.
Abstract: An experiment was conducted to assess the response of juvenile barramundi ( Lates calcarifer) to four diets containing either marine- or non-marine derived neutral lipid (NL) or polar lipid (PL) sources for eight weeks in a 2 × 2 factorial design. The four diets contained 8.2% added lipid composed of a 1% fish oil base with 7.2% test lipid (n - 3 NL: Fish oil, n - 3 PL: Krill oil, n - 6 NL: Soybean oil, n - 6 PL: Soybean lecithin). The results demonstrated that the different lipid sources (either n - 3 or n - 6 omega series from either NL or PL class) had significant effects on growth performance and feed utilisation with some interaction terms noted. Growth was negatively affected in the n - 6 NL fish and the feed conversion (FCR) was highest in the n - 6 PL fish. Digestibility of total lipid and some specific fatty acids (notably 18:2n - 6 and 18:3n - 3) were also negatively affected in the n - 6 PL fish. Analysis of the whole body neutral lipid fatty acid composition showed that these mirrored those of the diets and significant interaction terms were noted. However, the whole body polar lipid fatty acids appeared to be more tightly regulated in comparison. The blood plasma biochemistry and hepatic transcription of several fatty acid metabolism genes in the n - 6 PL fed and to a lesser extent in the n - 6 NL fed fish demonstrated a pattern consistent with modified metabolic function. These results support that there are potential advantages in using phospholipid-rich oils however there are clear differences in terms of their origin. Statement of relevance: Juvenile barramundi may benefit from dietary phospholipid. © 2016 Elsevier B.V.
DOI Link: http://dx.doi.org/10.1016/j.aquaculture.2016.01.013
Rights: This item has been embargoed for a period. During the embargo 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. Accepted refereed manuscript of: Salini MJ, Wade NM, Bourne N, Turchini GM & Glencross B (2016) The effect of marine and non-marine phospholipid rich oils when fed to juvenile barramundi (Lates calcarifer), Aquaculture, 455, pp. 125-135. DOI: 10.1016/j.aquaculture.2016.01.013 © 2017, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

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