Results of the study showed that the cost of producing tilapia 1 Rai of land, there are a number of version 6, 943.45 tilapia a 0.70 kg with a weighted average yield of 4, 860.41 baht per Rai tilapia production costs on average of all 222, 351.40 baht per Rai as a proportion of the average variable cost, 209, 397.17 baht per Rai 94.17 percent.Of the total cost, which is the cost of fish species 14, 500.00 baht per Rai 6.52 percent the value of food fish, small fish, large food 101, Rais, 590.84 baht per 35.51 percent fuel value 10, 071.33 baht per Rai 4.53 percent electricity 4, 901.25 baht per Rai 2.20 percent up, how medications 236.25 THB 0.11 percent up the vitamin supplement 977.50 baht per Rai 0.44 percent wage labor, 77, 120.00 baht per Rai 34.68 percent of total costs, respectively, and the average fixed cost 954.23 baht per Rai 12, thought is 5.85 percent.Of the total cost and the total cost per kilogram average 60.86 baht.
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