Abstract
In attempt to produce buoyant feed for Catfish and Tilapia fishes without extrusion, twenty eight (28) iso-proteic (30% Crude protein) multi-caloric (21.00-40.00 Kcal/g) diets were formulated and compounded with cooked and uncooked Maize, Cassava, Wheat starches and Aquatec-11 as binders. Duckweed Lemnna paucicostata, Baker‘s yeast Saccharamyces cerevisiae and Honey comb (animal exudates) were involved as floating agents. Investigation were carried out on diets stability and nutrients (Crude proteins and Crude lipids) retention in glass tanks measuring 60X30X30cm3 in 60 minutes at 10 minutes interval to substantiate diets efficacy in aquaculture input management. The results revealed significant (P<0.05) superiority in water stability, proteins and lipids retention in diets bond with Aquatec-11 over cooked starches and uncooked wheat flour starch from 20 minutes to end of immersion period. Cooked and uncooked wheat flour starch and cooked cassava tuber starch were significantly (p<0.05) superior to maize among the local binders. There were general trends in that proteins and lipids leached as time of immersion increases and that the rate at which proteins leached were faster than the lipids irrespective of binding or floating agents. Therefore their use as feeds is highly recommended.
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