Parameters ZWD Conventional
SR (%) 90.82 27.22
MBW (g) 8.24 5.45
Stocking Density 12.136 ind/30m3 18,348 ind/30m3
Water Consumption (m3) 52.1 78
FCR 1.27 4.10
Total Feed (kg)
(FCR x Total Biomass)
127 410
Feed Cost (IDR)
(Total Feed x 15,000 IDR/kg)
1,905,000 6,150,000
Seed Cost (IDR)
(Stocking Density x 35 IDR/Larvae)
424,760 642,180
Nitrifying Bacteria Culture Cost (IDR) 30,000 -
Algae Culture Cost (IDR) 25,000 -
Maintenance Cost (IDR)
(10% of operational cost)
240,000 200,000
Total Cost (IDR) 1,624,760 6,992,180
(Feed Cost+SeedCost+Nitrifying Bacteria Culture Cost+Algae Culture Cost+Maintenance Cost)    
Total Income (IDR)
(Total Biomass x 50,000 IDR/kg)
5,000,000 5,000,000
Revenue (IDR)
(Total Income-Total Cost)
2,375,240 -1,992,180
*maintenance cost in ZWD system is included algal and nitrifying bacteria culture
Tabel 5: Cost and profit estimation to produce 100 kg shrimp using ZWD and conventional batch system.