International Journal of Fisheries and Aquatic Studies

Volume 1, Issue 3, 2014


Substitution of fishmeal with bambaranut waste meal in diets of first feeding (Clarias gariepinus x Heterobranchus bidorsalis) “Heteroclarias”


Author(s): Enyidi Uchechukwu D., Mgbenka B.O.M

Abstract: First feeding larvae of hybrid African catfish average weight, 1.85±0.79 g were fed five substituted diets of fish meal (FM) and bambaranut waste meal (BNWM) for 30d. Feeds were labeled feed 1 (F1) to feed 5 (F5). The percentage inclusion of Fish meal (FM) and bambaranut waste meal (BNWM), (FM: BNWM), per feed were; F1, (0: 94), F2, (5: 89), F3, (20: 74), F4, (35: 59), F5, (55: 39). The catfish specific growth rates were, F5, 6.48±1.71; F4, 6.40±1.56; F3, 6.32±1.70; F2, 5.02±1.87 and F1, 4.19±1.53 % day-1. Food conversion ratios were as follows, F3, 1.45; F5, 1.45; F4, 1.89; F2, 2.85 and F1, 4.30. Catfish average weight gains were, F5, 6.98±0.42 g; F4, 6.83±0.67 g; F3, 6.66±0.14 g; F2, 4.51±0.98 g and F1, 3.52±0.17 g. The average length gain were as follows, F5, 2.0±0.65 ; F4, 2.0±0.37; F3, 2.0±0.46 ; F2, 1.0±0.15 and F1, 0.5±0.10 mm. Results indicates no significant difference between 55:39% (FM:BNWM) and 20:74 (FM:BNWM) diets. BNWM can reduce amount of FM in diets of heteroclarias to 20%.


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