Author(s): Jibrin H, Abubakar MY, Mamman T, Abubakar M, Musa M and Ahmad H

Abstract: The effects of Cassia tora leaf meal on the hematological indices of Clarias gariepinus was investigated for a period of 63 days. C. tora leaf meal was incorporated in the diet at 0 (control), 3, 6, 8 and 10% in five different diets. C. gariepinus (mean weight 2.17±0.01g) were randomly distributed in to concrete tanks at 20 fish/tank in triplicate treatments. The results of the hematological parameters obtained, revealed significantly low values of white blood cell (WBC), mean corpuscular hemoglobin (MCH), Mean platelet (MPV) and platelet-large cell ratio (P-LCR) in fish fed diet containing inclusion levels of the Casia tora leaf meal than the control diet. Fish fed diet containing 3% Casia tora leaf meal diet recorded the highest pack cell volume (PCV) and hemoglobin (Hb) and were significantly (P<0.05) higher than the other dietary treatments including the control diet. Fishes fed the control diet, 6 and 12% Casia tora leaf meal diets had a decrease in Red blood cell (RBC) but were not significantly different (P<0.05). The highest mean corpuscular haemoglobin concentration (MCHC) was recorded in fish fed with 3 and12% Casia tora leaf meal diet but were significantly (P<0.05) different from all the dietary treatments including the control, while the lowest values were recorded in fish fed containing 6 and 9% Casia tora leaf meal diets and were significantly different (P<0.05). Further investigation on the utilization of Casia tora leaf meal in fish feeding and adopting appropriate processing methods for the removal of anti-nutritional factors is desirable.

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