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The culture of African catfish (Clarias gariepinus) is hamstrung by high feed cost, and efforts to reduce it have been geared toward exploiting fishmeal alternatives which are hitherto competed for by both human and livestock. There is a growing need to search for waste products which can save this situation. A 91-day feeding trial was conducted in nine tarpaulin tanks with twenty C. gariepinus fingerlings each of average weight 2.79±0.05 g to check the effect of chitosan and its nanoparticles on growth performance and feed utilization. The basal diet (BD) which served as control was formulated to contain 40% crude protein. Two test diets were formulated to contain BD replaced with 5g kg-1 diet of chitosan (BD+CH) and chitosan nanoparticles (BD+CHN) respectively. These were replicated thrice. Chitosan supplementation was found to significantly (P<0.05) improved daily weight gain, survival and meat quality P<0.05) of C. gariepinus fingerlings while chitosan nanoparticle supplementation significantly improved water quality, daily weight gain, feed utilization, survival as well as body composition. Chitosan nanoparticles from shells of arthropods and shellfish which lay waste globally has the potentials to revolutionize aquaculture. Fish nutritionists as well as farm managers should key into this platform technology.

nanoscience

Effects of Chitosan and Chitosan Nanoparticles on Water Quality, Growth performance, Survival Rate and Meat Quality of the African Catfish, Clarias Gariepinus