Carrying capacity of 4 ppt saline water on the production performance and water quality profile of Nile tilapia (Oreochromis niloticus) at different densities
2025
Nirmala, Kukuh | Rika, Angel | Nurussalam, Wildan | Mahmud, Moh Burhanuddin
Increased density in fish farming can reduce the space for fish movement. The increase in density should be followed by considering the carrying capacity, which includes using an iso-osmotic environment, in this case, 4 ppt salinity. The purpose of this study is to analyze the use of 4 ppt salinity at different densities on production performance, water quality, physiological responses, and cost analysis in Nile tilapia. The experimental method was performed using Nile tilapia measuring 4.53±0.04 cm and an average weight of 1.45±0.03 g in each different density treatment, namely the control treatment of 1000 fish m-3, A 1250 fish m-3, B 1500 fish m-3, and C 1750 fish m-3, given a salinity 4 ppt with research parameters, including production performance parameters, water quality, and stress response. The results showed that the use of 4 ppt salinity in Nile tilapia can support the success of treatment C with a density of 1750 fish m-3, with water quality that is still in the optimal range for Nile tilapia and a survival rate of 95.6% with an average length of 6.6 cm, so that treatment C has the highest profit of IDR 51,500.00.
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