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Effects of alpha-tocopherol supplementation of rotifers on the growth of striped trumpeter Latris lineata larvae


Brown, MR and Dunstan, GA and Nichols, PD and Battaglene, SC and Morehead, DT and Overweter, AL, Effects of alpha-tocopherol supplementation of rotifers on the growth of striped trumpeter Latris lineata larvae, Aquaculture, 246, (1-4) pp. 367-378. ISSN 0044-8486 (2005) [Refereed Article]

DOI: doi:10.1016/j.aquaculture.2005.02.006


The effect of dietary α-tocopherol (α-T; vitamin E) on the performance of striped trumpeter larvae was assessed using a dose-response design. Five tuna oil/lecithin/water emulsions containing between 0% and 4% (40 mg g-1) dry weight (DW) of α-T were fed to rotifers, resulting in rotifer α-T concentrations between 114 and 1040 μg g-1 DW. These rotifers or a reference diet of rotifers enriched with AlgaMac 2000 (AM) were fed to larvae from first feeding at 5 days post-hatch (dph) until 23 dph. In larvae fed the emulsion-enriched rotifers, tissue concentrations of α-T were correlated to dietary concentrations. Larvae at 5 dph contained 276 μg α-T g-1; concentrations in most larvae had reduced at 23 dph (to between 121 and 225 μg α-T g-1) except for those fed highest α-T, which contained 356 μg g-1. Larval weight at 20 dph, and length at 14 and 23 dph were positively correlated with dietary α-T concentration. Interpolation of data from the regression curves showed that higher dietary α-T (i.e. ≥437 μg α-T g-1) gave a maximum 7% increase in larval length and a maximum of 10% increase in weight. Larval survival was extremely variable (average 37.0±30.1%). Though not statistically significant, average survival was apparently higher (48.4±28.2%) in larvae fed diets containing ≥437 μg α-T g-1 than those fed diet with lower α-T, i.e. ≤144 μg α-T g-1 (25.6±30.3%), with larvae fed 221 μg α-T g-1 having intermediate survival (37.2±32.3). © 2005 Elsevier B.V. All rights reserved.

Item Details

Item Type:Refereed Article
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:Fisheries - aquaculture not elsewhere classified
UTAS Author:Battaglene, SC (Associate Professor Stephen Battaglene)
UTAS Author:Morehead, DT (Dr David Morehead)
UTAS Author:Overweter, AL (Ms Anna Overweter)
ID Code:35287
Year Published:2005
Web of Science® Times Cited:16
Deposited By:TAFI - Marine Research Laboratory
Deposited On:2005-08-01
Last Modified:2011-09-20

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