ANALISIS PENDAPATAN USAHA PEMBESARAN IKAN NILA MERAH (OREOCHROMISSP ) PADA KOLAM AIR DERAS DI KECAMATAN POLANHARJO KABUPATEN KLATEN

The research was aimed to identify the cost, revenue, income, and efficiency of red tilapia raising I Polanharjo Sub-District, Klaten. The basic methode of this research is descriptive analysis. The selected samples were Janti, Ngajat, and Sidowayah Villages based on the fact that the aforementioned were the major sites of red tilapia raising with large ponds and large red tilapia populations. Datta collecting was conducted through observation, interview, and record-keeping. Data consisted of the primary and secondary data. The data was analysed using cost, revenue, income, and efficiency analysis, Research result indicated that the total cost in red tilapia raising in rapid water ponds was to Rp 49.059.430,00 for one cycle of fish raising. The level of mean revenue obtained by a fish farmer is equal to Rp 5L 461.465,83, The mean income obtained by a fish farmer of equal to Rp 2.402.035,8T. The efficiency is equal to 1,05 showing that red tilapia rasing in rapid water ponds in Polanharjo Sub-District, Klaten is efficient, Keywords : raising, red tilapia fish , rapid water, income, efficiency.