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Dietary supplementation with phytobiotics is a promising area in fish nutrition towards promoting the growth and health status of cultured fish. This experiment was conducted to determine the effects of Aspilia africana leaves-paste (AAL) on the growth, haematology and serum biochemistry of Clarias gariepinus broodstock. Experiment was carried out in a 24 net-happa (0.6m x 1.07m x 1.2m) suspended in an earthen pond (30 m x 5 m x 1.2m). Fortyeight (7 months old fish, 24 males (0.80±0.04kg) and 24 females (0.70±0.03kg)) were stocked at two fish per net-happa under four treatments in six replicates in a completely randomized design. Four diets (40% crude protein) were formulated to contained: control (0%); AAL1 (0.5%); AAL2 (1%) and AAL3 (1.5%). Fish were fed ad libitum twice daily for 16 weeks. Data on all parameters were analyzed using ANOVA. The highest mean weight gain, MWG: 3.13±0.15kg and lowest feed conversion ratio, FCR: 1.30± 0.04 were recorded in broodstock fed 1.5% AAL3. The lowest MWG (1.27±0.03kg) and highest FCR: 1.72±0.03) were obtained in broodstock fed control diet. The lowest packed cell volume: 15.83 ± 0.17 % and haemoglobin: 5.25 ± 0.1 (g/dL) were recorded in fish fed 1% and 1.5% AAL. No significant differences in the total protein and creatinine values obtained between fish fed 1% and 1.5% AAL. The study recommended the dietary inclusion of 1.5% A. africana leaves-paste to effectively promote growth and nutrient utilization of cultured C. gariepinus broodstock

nigerian journal of animal production

Growth performance, nutrient utilization, haematology and serum biochemistry of African catfish (Clarias gariepinus) broodstock fed varying levels of Aspilia africana leaves-paste