The optimation of farmers families' revenue the integration of Pasundan cattle and paddy farming in West Java
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This research aimed to analyze the revenue optimization of farmer family with ratio of the most ideal farm scale in the integration of Pasundan cattle and paddy farm, and to analyze the most leveraging production factor towards the family revenue. The respondents were 94 farmers who had integrated farming between cattle and paddy. This research used survey method in four regions purposively based on Pasundan cattle centre. Data were analyzed with linear programming and production function of Cobb Douglass. The results were: (1) max Z = -(4,584,841x1+1574260 (x2+x3)) + (6,000,000jx1+4000000 (j x2 +j x3 )); this function consist of constraints: labour, transfer products between cattle and paddy farm, transfer fertilizer, capital of paddy farming in planting season-I and season-II. (2) Yintegration = 15,721,319.75 – 72.541 land – 1.317 fertilizer + 4.667 seeds + 487765.94 farminglabour + 6339170.199 cattlevalue – 935.559 feed + 162618.999 cattlelabour. There were some conclusions: First, the integration of Pasundan cattle and paddy farming produced the optimum family revenue/year, with ratio of 6.02 animal unit and 0.5 ha of paddy farming; Second, the production factor of agricultural land, labour, seeds, feed and capital (cattle) were explained (R2=87.66%) toward the integration revenue; Third, the variable which has the contribution to leverage the revenue was the capital of cattle (81.52%).