Protein and Energy:Protein Ratio in Diets for Juvenile Bluefin Trevally Caranx melampygus

A 40-day feeding trial assessed the dietary protein and energy:protein ratio requirements for optimum growth performance of juvenile bluefin trevally, Caranx melampygus. Practical diets were formulated to contain 33%, 37%, 41%, or 45% crude protein and either 9 or 11 kcal GE/g. Dietary protein level...

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Bibliographic Details
Published in:Journal of applied aquaculture 2014-04, Vol.26 (2), p.187-196
Main Authors: Suprayudi, Muhammad Agus, Ihu, Muhammad Zayani, Utomo, Nurbambang Priyo, Ekasari, Julie
Format: Article
Language:English
Subjects:
Aquaculture
bluefin trevally
Caranx melampygus
Diet
energy:protein ratio
Fish
Lipids
Physical growth
Protein
Proteins
Survival analysis
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Summary:A 40-day feeding trial assessed the dietary protein and energy:protein ratio requirements for optimum growth performance of juvenile bluefin trevally, Caranx melampygus. Practical diets were formulated to contain 33%, 37%, 41%, or 45% crude protein and either 9 or 11 kcal GE/g. Dietary protein level at any given energy:protein levels significantly affected muscle protein, feed consumption, growth, feed efficiency, survival, and protein and lipid retention. At dietary protein levels >33%, increasing energy:protein ratio to 11 kcal GE/g protein significantly reduced growth performance and feed consumption. Results suggest that optimum growth and feeding response of juvenile bluefin trevally can be attained at a dietary protein level of 45% with an energy:protein ratio of 9 kcal GE/g protein.
ISSN:1045-4438
1545-0805
DOI:10.1080/10454438.2014.907712