Author(s): Idowu TA, Denham SA and Adedeji HA

Abstract: As aquaculture production become more intensive, the sustainability of the industry depends upon the availability of suitable and economical feeds, which are organically derived. Essential information is needed especially on organically derived feed additives that can enhance diet digestibility and immune responses. This study evaluates the performance of Clarias gariepinus fingerlings fed varying levels of Telfairia occidentalis leaf meal additives. The plant leaves were shade dried to constant weight and milled to powder form. Five diets; T₁, T_2, T₃, T₄ and T₅ containing 0g (control), 0.5%, 1.0%, 1.5% and 2.0% Telfairia occidentalis leaf meal additives respectively were formulated. The diets were fed to C. gariepinus fingerlings for eight weeks. The mean weight gain were significantly different (p< 0.05) with diet T₃ having the highest value, 25.93±2.11g and T₅ the least value, 17.93±1.81g. Diet T₁, T₃, T₄, and T₅ had 85% survival and diet T₂ had the least survival, 75% however, with no significant difference (p>0.05). The haematology profiles of the experimental fish indicated significant differences (p>0.05) in all the parameters examined. The erythrocytes and leukocytes were highest for diet T₃ with 3.17±0.27 and 285.10±2.10 respectively. The proximate analysis of the carcass of C. gariepinus indicated diet T₁ having higher crude protein content (63.59%) than other treatments however with no significant difference (p>0.05). Telfairia occidentalis leaf meal can be used as plant additives in the diet of Clarias gariepinus.

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