Journal
ANIMAL FEED SCIENCE AND TECHNOLOGY
Volume 191, Issue -, Pages 98-105Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.anifeedsci.2014.01.020
Keywords
Brown-marbled grouper; Epinephelus fuscoguttatus; Growth performance; Lipid requirement; Protein requirement; Protein sparing action
Categories
Funding
- Ministry of Agriculture and Agro-Based Industry, Malaysia [SCF0064-AGR-2009]
Ask authors/readers for more resources
Nine practical diets containing different protein (450, 500, or 550 g/kg) and lipid (80, 120, or 160 g/kg) levels in a 3 x 3 factorial experimental design were fed to triplicate groups of brown-marbled grouper, Epinephelus fuscoguttatus (initial weight, 8.8 +/- 1.0 g) for eight weeks. Fish were cultured in a flow-through seawater system with a stocking density of 15 fish per tank. Fish fed Diet 50/16 (500 g/kg protein and 160 g/kg lipid) had the highest final body weight and specific growth rate at the end of feeding trial. In general, diets with 450 g/kg protein, irrespective of lipid levels, produced fish with lower growth performance compared to other fish groups. Meanwhile, increasing dietary protein content to 550 g/kg did not improve growth rates of the cultured fish. The feed conversion ratio (FCR) mirrored the growth rate trend with better value of FCR observed in fish fed Diet 50/16. The results indicated that a diet formulated with 500 g/kg protein and 160 g/kg lipid was optimal for rearing brown-marbled grouper fingerlings < 40 g body weight. Increasing lipid level in the diets from 80 to 160 g/kg appeared to have a protein sparing effect which should help reduce feeding costs. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available