Abstract
150 fingerlings of African catfish (Clarias gariepinus) with initial mean weight of ±5.1g was stocked in a glass aquaria and were fed to satiation for 156 days. Histidine was used as a supplement to determine the mineral and carcass quality of African Catfish (Clarias gariepinus) fingerlings at varying inclusion levels (0, 0.2%, 0.4%, 0.6% and 0.8%) representing D1 – D5 in a formulated diet of 40% crude protein.
 The carcass proximate and mineral composition were significantly improved by histidine supplementation but, exhibited no definite pattern of inclination while, moisture decreased significantly with increased histidine level up to diet D5. The calcium composition were significant different (P<0.05) with values ranging between 41.0 and 87.6 mg/gDM.
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