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Neem Aquaculture

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Aquaculture provides suitable and cheap substitute for dietary protein but its facilities are increasingly relying on the heavy input of formulated feeds, antibiotics, antifungal, and agrochemicals due to production surge. Neem has been reported to have antibacterial, antifungal antiviral and pesticidal activities with improving general growth and health performance. Therefore, Neem antibacterial effects, growth performance as well as sensory qualities in African catfish were investigated in this study. Ninety (90) post-juvenile African catfish (Clarias gariepinus) weighing 42.40 ±2.50g were used. Experimental groups in triplicate were exposed bi-weekly to 3.5% and7% LC50 of neem leaves aqueous extract infused in commercial floating feed for four weeks while the control group was exposed to untreated feed. At the end of the experiment, length and whole body weight of the randomly sampled fish as well as the weight of the various organs were taken for organo-somatic indices. Gills and skin samples were collected for bacteriological screening while other fish samples were prepared for sensory acceptability tests.
The mean feed …show more content…

They were de-gut, cut into uniform sizes, washed with clean water and steamed separately with a pinch of iodized salt in 30cl of clean water for 10 minutes and allowed to cool to reasonable serving temperature. Similar part of each fish was presented for evaluation to each member of the panel (Five (5) Semi-trained persons from the university community) in coded digital labels to conceal every information about the samples in order to avoid bias in judgement. After each sample, mouth rinsing with clean water and a waiting time of about 5minutes was encouraged for clarity of taste. Palatability and acceptability was subjected to Quality Index Method (QIM) of sensory quality

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