Apparent Digestibility Coefficient and Carcass Composition of Nile Tilapia (<i>Oreochromis niloticus</i>) Fed Processed Duckweed (<i>Lemna paucicostata</i>) Meals

This study evaluated the apparent digestibility coefficient of processed duckweed based diets and its effect on carcass composition Oreochromis niloticus.  Blanching sun-drying were employed as processing methods to reduce antinutrients in duckweed meal. The experiment was conducted two outdoor concrete ponds with an area 5 m x 3.5 m (l × b) a depth 1.5 m each, using 27 Hapa nets measuring 1 2 each. Nine iso-proteinous (D -D 9 ) formulated least-cost feed formulation software. Soybean meal replaced by blanched sun-dried at 25%, 50%, 75%, 100% A total 10 fingerlings O. niloticus (7.46 ± 0.06 g) stocked per fed three times day 5% biomass for 24 weeks. Highest protein 92.94% recorded diet containing 75% meal (D 4 while least value 86.86% obtained 5 ). fish gave significantly highest ( P ≤0.05) 60.80% followed D 6  (25% meal) 3 (50% which had similar values 60.07% 60.04%, respectively 44.73% initial protein. dietary coefficients this suggest that all can be used replace soybean without any reduction contents.