The effects of cassava residue supplementation in Nile tilapia (Oreochromis niloticus) feed on carcass composition and economic return
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Abstract
The supplementation of cassava residue in Nile tilapia (Oreochromis niloticus) feed was conducted the optimal level of cassava residue for improving Carcass Composition and to analyze the production costs of Nile tilapia fed with cassava residue. The chemical composition analysis showed that Diet 1 had the highest percentages of dry matter (89.7%), organic matter (88.0%), and crude protein (31.4%), indicating its nutritional superiority. Conversely, Diet 2 had the highest ash content (15.8%) and the lowest cost (1,006.45 THB per cage), making it a cost-effective option. In terms of carcass characteristics, significant differences (p < 0.05) were noted among the diets, with Diet 2 resulting in the highest standard length (12.90 cm) and weight after 30 minutes (70.44 g), demonstrating its effectiveness in promoting growth. The economic evaluation revealed that Diet 4 provided the highest net profit (638.80 THB per cage), outperforming the other diets in profitability. Overall, the findings indicated that incorporating dried cassava residue into Nile tilapia diets is not only enhanced growth performance but also contributed to improve economic returns. This study is provided valuable insights for aquaculture practitioners looking to optimize feed formulations for Nile tilapia while minimizing costs.
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