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¹ Afyon Kocatepe Üniversitesi Veteriner Fakültesi Hayvancılık İşletme Ekonomisi Anabilim Dalı - AFYON
² Ankara Üniversitesi Veteriner Fakültesi Hayvancılık İşletme Ekonomisi Anabilim Dalı - ANKARA - This study was carried out to measure the profitability and productivity of the cattle fattening enterprises in Afyon and to determine their optimum level in resource usage by analyzing the econometric model. The initial live-weight was 219 kg/head at the onset of fattening, 457 kg/head at the end of fattening. The average fattening period, daily live-weight gain and feed conversion ratio (as a dry matter) were calculated to be 194 days, 1.233 kg/head and 9.57 kg respectively. The proportions of cost of feed, labour, vets-and-meds, depreciations-repair-maintenance and miscellaneous expenses in the total cost accounted for 53.6, 29.95, 6.25, 2.27, 1.28 and 6.47 respectively. The marginal product values calculated for the aggregate of all enterprises were be 0.84 for purchased cattle, 0.97 forfeed,1.09 for labour, 14.24 for vets-and-meds and 0.99 for the other costs. Returns to scale in Afyon cattle fattening enterprises was 1.082. The ratio of economic rantability, financial rantability and rantability factor were estimated to be 16.61; 17.07 and 13.79 respectively. Average productivity indexes estimated by using the real and predicted production values of farms were calculated to be 97.65, 99.70 and 100.92 in small, medium and large scale enterprises respectively. Keywords : Cattle Fattening, Cobb-Douglas, Cost, Productivity, Profitability