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Seven fish oil substitutes over a rainbow trout grow-out cycle: I) Effects on performance and fatty acid metabolism

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dc.contributor Australian Institute Of Marine Science
dc.contributor Nuseed Global
dc.contributor Sch Life & Environm Sci
dc.contributor Deakin University
dc.contributor Deakin Univ
dc.contributor Australian Inst Marine Sci FRANCIS, D. S. TURCHINI, G. M. HERMON, K. CLEVELAND, B. J. EMERY, J. A. RANKIN, T. 2013-09-19T05:34:23Z 2013-09-19T05:34:23Z 2017-03-21T01:30:38Z 2019-05-09T01:12:09Z 2013-09-19T05:34:23Z 2017-03-21T01:30:38Z 2013-09-19T05:34:23Z 2019-05-09T01:12:09Z 2013-08-01
dc.identifier.citation Turchini GM, Hermon K, Cleveland BJ, Emery JA, Rankin T, Francis DS (2013) Seven fish oil substitutes over a rainbow trout grow-out cycle: I) Effects on performance and fatty acid metabolism. Aquaculture Nutrition 19(s1): 82-94. en_US
dc.identifier.issn 1353-5773
dc.description.abstract A long-term feeding trial was implemented on rainbow trout (Oncorhynchus mykiss) to assess the effects of seven alternative oils on fish performance and fatty acid metabolism. The tested oils were as follows: monola (a high oleic acid canola cultivar; MO), canola (rapeseed; CO), poultry by-product (chicken fat; PbPO), palm (PO), sunflower (SFO), high oleic acid sunflower (HOSFO) and soybean (SBO). All tested oils were included at a 75% substitution level of fish oil (FO) and were compared with a control diet containing 100% FO. PO, and to a lesser extent PbPO, exhibited impaired performance and lower digestibility values. All treatments containing low levels of saturated fatty acids (namely MO, CO, SFO, HOSFO and SBO) recorded an apparent in vivo fatty acid de novo production. The apparent in vivo fatty acid -oxidation was proportional to fatty acid dietary supply and limited apparent in vivo fatty acid bioconversion (elongation and desaturation) was recorded, primarily acting on n-6 PUFA. In all treatments, dietary 20:5n-3 was actively bioconverted into 22:6n-3. It was shown that when some FO is provided with the diet, the in vivo fatty acid metabolism plays a minor role in determining final fatty acid make-up of fish whole bodies.
dc.description.sponsorship Research support from Nuseed (Nuseed Global, Laverton, Victoria, Australia) is gratefully acknowledged. The authors are also grateful to Dr. Richard Smullen (Ridley AgriProducts Pty Ltd, Australia) and Dr. Lucky Inturrisi (Cargill Ltd, Australia) for kindly donating the raw materials used for experimental feed preparation.
dc.description.sponsorship Nuseed Global en_US
dc.description.uri en_US
dc.language English
dc.language.iso en en_US
dc.publisher Wiley en_US
dc.relation.ispartof Null
dc.subject Beta-oxidation Capacity
dc.subject Soybean Oil
dc.subject Sunflower Oil
dc.subject Rapeseed Oil
dc.subject High Oleic Oils
dc.subject Poultry By-product Oil
dc.subject Canola Oil
dc.subject In-vivo
dc.subject Vegetable-oil
dc.subject Insoluble Ash
dc.subject Salmon Salmo-salar
dc.subject Oncorhynchus-mykiss
dc.subject Lipid Sources
dc.subject L.
dc.subject Palm Oil
dc.subject Fisheries
dc.title Seven fish oil substitutes over a rainbow trout grow-out cycle: I) Effects on performance and fatty acid metabolism
dc.type journal article en_US
dc.identifier.doi 10.1111/anu.12046
dc.identifier.wos WOS:000326237200007

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