Journal of Environmental Biology

Dietary lipid requirement of lemon fin barb hybrid 

Saufinas Ismail¹, Mohd Salleh Kamarudin^{1, 2}* and Che Roos Saad¹

¹Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia

² Institute of Halal Product Research, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia

*Corresponding Author E-mail: msalleh@upm.edu.my

Publication Data

Paper received:

20 April 2015

Revised received:

16 March 2016

Accepted:

09 April 2016

Abstract

The present study has been conducted to determine the optimal dietary requirement lipid of lemon fin barb hybrid fingerlings. Five isonitrogenous diets (35% protein) with graded lipid levels of 0%, 4%, 6%, 8% and 12% were fed to 225 lemon fin barb hybrid fingerlings (4.3 ? 0.5 g), which were randomly and equally distributed into twelve 60 l aquaria. The diets were randomly assigned to the aquaria in triplicates, and the feeding experiment was conducted for 10 weeks. Fish were fed at 5% body weight and the feeding ration was adjusted fortnightly. The weight gain, specific growth rate (SGR), protein efficiency ratio (PER) and feed conversion ratio (FCR) of fish fed 4% dietary lipid were significantly superior (P<0.05) than those fed with other diets, except for 6% lipid. Except for whole body moisture content, there were significant differences (P<0.05) between whole body proximate composition and nutrient retentions of fish fed with different test diets. The results showed that palmitic acid was the main saturated fatty acid (SFA), oleic acid was the predominant MUFA while arachidic acid and docosahexanoic were the major PUFAs in the muscle and liver tissue of fish. The n-3/n-6 ratio ranged from 0.66 to 2.65. From the results of this study, a dietary lipid of 4% was recommended for lemon fin barb hybrid. ?  

 Key words

Fatty acids, Growth, Lemon fin barb hybrid, Lipid requirement

Copyright ? 2016 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).