The Israeli Journal of Aquaculture - Bamidgeh 55(3), 2003, 160-168

FEEDING FREQUENCY AND FEED INTAKE IN THE AFRICAN
CATFISH CLARIAS GARIEPINUS (BURCHELL 1822)


Panagiotis A. Pantazis* and Christos N. Neofitou

Laboratory of Ichthyology-Hydrobiology, Department of Agriculture, Animal Production and Aquatic Environment, University of Thessaly, Fytokou Street, Nea Ionia Magnissias, 38446 Volos, Greece


(Received 19.10.02, Accepted 10.2.03)

Key words: African catfish, feed intake, feed ration, feeding regime, feeding rhythm


Abstract

Triplicate groups of subadult catfish (Clarias gariepinus; 102.1830.48 g) were fed a purified diet to satiation twice or three times a day during the daylight hours for 26 days. Fish fed twice a day consumed 1.420.49% of their body weight per day. Those fed three times a day consumed 1.270.27%. The fish fed twice a day exhibited better growth and food conversion. Despite the use of purified diets, performance indices for the group fed twice per day were good, compared to previously reported data. The specific growth rate was 1.240.08%, the weight gain was 38.512.96% and the food conversion ratio was 0.720.13.


*Corresponding author: Tel.: +30-421-93082, fax:+30-421-93065,
e-mail: papantaz@agr.uth.gr

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