Assessment of dietary lecithin and cholesterol requirements of mud crab, Scylla serrata, megalopa using semi-purified microbound diets

M H Holme; Paul C Southgate; C Zeng

doi:10.1111/j.1365-2095.2007.00492.x

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Assessment of dietary lecithin and cholesterol requirements of mud crab, Scylla serrata, megalopa using semi-purified microbound diets

Journal article

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Assessment of dietary lecithin and cholesterol requirements of mud crab, Scylla serrata, megalopa using semi-purified microbound diets

M H Holme, Paul C Southgate and C Zeng

Aquaculture Nutrition, Vol.13(6), pp.413-423

2007

DOI: https://doi.org/10.1111/j.1365-2095.2007.00492.x

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Abstract

carapace width

cholesterol

development

dry weight

megalopa

microbound diet

mud crab

phospholipids

Scylla serrata

survival

The effects of varying dietary lecithin and cholesterol levels on growth, development and survival of mud crab, Scylla serrata, megalopa were evaluated using six semi-purified, microbound diets formulated to be iso-energetic and containing three levels of supplemental lecithin (0, 20 and 40 g kg-1 diet dry weight) and two levels of supplemental cholesterol (0 and 7 g kg -1 diet dry weight). Fifteen megalopa were reared individually in each treatment and the nutritional value of diets was assessed on basis of mean dry weight and mean carapace width of newly settled first crab stage, as well as development time to the first crab stage and overall survival. A significant interaction between supplemental dietary lecithin and supplemental dietary cholesterol was found for final mean dry weight of newly settled crabs, and highest survival (60%) was recorded for megalopa fed diets containing the highest levels of dietary lecithin (39.7-44.1 g kg-1) (diet 5 and 6) regardless of whether diets were supplemented with cholesterol; this rate of survival was identical to that of megalopa fed live Artemia nauplii. The results indicate that supplemental dietary cholesterol may not be essential for mud crab megalopa when fed diets containing sufficient levels of supplemental dietary phospholipids. © 2007 Blackwell Publishing Ltd.

Details

Title: Assessment of dietary lecithin and cholesterol requirements of mud crab, Scylla serrata, megalopa using semi-purified microbound diets
Authors: M H Holme (Author) - James Cook University
Paul C Southgate (Author) - James Cook University
C Zeng (Author) - James Cook University
Publication details: Aquaculture Nutrition, Vol.13(6), pp.413-423
Publisher: Wiley-Blackwell Publishing Ltd.
Date published: 2007
DOI: 10.1111/j.1365-2095.2007.00492.x
ISSN: 1353-5773
Organisation Unit: School of Science and Engineering - Legacy; Australian Centre for Pacific Islands Research; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99449477002621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Fisheries