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Influence of Varying Dietary Protein Content at Three Lipid Concentrations on Growth Characteristics of Juvenile Swordtails (Xiphophorus helleri Heckel 1848)

Influence of Varying Dietary Protein Content at Three Lipid Concentrations on Growth... Three protein levels (30%, 38% and 45%) at three different dietary lipid concentrations (6%, 8% and 12%) were used to formulate nine different diets that were fed for 60 days to 6–8 weeks old juvenile swordtails (Xiphophorus helleri). It would appear that a diet of at least 45% protein at a 6% lipid concentration is needed for the best specific growth rate (1.27% per day) and feed conversion ratio (2.50) at this specific growth phase in X. helleri. No ‘protein sparing effect’ was found when lipid concentration was increased at lower protein levels. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aquarium Sciences and Conservation Springer Journals

Influence of Varying Dietary Protein Content at Three Lipid Concentrations on Growth Characteristics of Juvenile Swordtails (Xiphophorus helleri Heckel 1848)

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Publisher
Springer Journals
Copyright
Copyright © 2001 by Kluwer Academic Publishers
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1357-5325
eISSN
1573-1448
DOI
10.1023/A:1013150314719
Publisher site
See Article on Publisher Site

Abstract

Three protein levels (30%, 38% and 45%) at three different dietary lipid concentrations (6%, 8% and 12%) were used to formulate nine different diets that were fed for 60 days to 6–8 weeks old juvenile swordtails (Xiphophorus helleri). It would appear that a diet of at least 45% protein at a 6% lipid concentration is needed for the best specific growth rate (1.27% per day) and feed conversion ratio (2.50) at this specific growth phase in X. helleri. No ‘protein sparing effect’ was found when lipid concentration was increased at lower protein levels.

Journal

Aquarium Sciences and Conservation – Springer Journals

Published: Sep 29, 2004

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