research product . 2012

Effect of dietary protein and energy levels on growth of juvenile orange-spotted grouper, Epinephelus coioides

Ghafleh Marammazi, Jasem; Zabayehnajafabadi, M.; Pagheh, E.; Aahmadi, B.; Eskandari, Gh.; Hafezieh, M.;
Persian
  • Published: 01 Jan 2012
  • Publisher: Iranian Fisheries Science Research Institute
Abstract
In order to evaluate the protein and energy requirement of orange-spotted grouper, Epinephelus coioides Fingerlings, nine semi-purified experimental diets containing 3 levels of crude protein (40%, 50% and 60%) and 3 levels of diegestible energy (DE, 14, 16 and 18 KJgr-1) in a flow-throught system (2 Litmin-1) at 24.32±1.11°C were tested. For 8-weeks Triplicate groups of 20 fish (16.79±.4 gr) were each stocked in 300 L circular polyethylene tanks and were fed the experimental diets to approximate satiation twice daily. Results showed that the survival rate hepatosomatic index (HSI) and condition factor (CF) were independent of the dietary treatments but final we...
Subjects
free text keywords: Aquaculture
Communities
Fisheries and Aquaculture Management
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