Management Analysis of Paddle Wheel for Efficiency Operational Cost Shrimp Culture Based on Oxygen Budget Capacity

Abstract

The aims of this research is to determine the optimal management of the paddle wheel based on the availability and balance of dissolved oxygen in shrimp ponds for efficiency in aquaculture operational costs. The methods employed are : (i) Field Observation for Oxygent Budget on included inputs oxygen and Outputs Oxygent and; (ii) Electricity usage during rearing periode. Results of analysis to Shrimp Culture (50 shrimp/m2) which obtained efficiency for paddle wheel electricity/kg shrimp as 1.04 kwh/kg shrimp/cyclus or 2.08 kwh/kg shrimp/years. Operational Cost is decreased as IDR 119 046 879/hectare/MT or IDR 238 093 758/hectare/years and profitable which obtained is increased to as IDR 55 788 853/hectare/cyclus atau IDR 111 577 707/hectare/years. While to shrimp culture (126 shrimp/m2) which obtained efficiency for paddle wheel electricity/kg shrimp as 1.61 kwh/kg shrimp/cyclus atau 3.22 kwh/kg shrimp/years. Operational Cost is decreased as IDR 355 936 618/hectare/cyclus atau IDR 711 873 235/hectare/years and profitable which obtained is increased to as IDR 186 435 278/hectare/cyclus or IDR 372 870 557/hectare/years.