Aral, SadiGökhan, Emin Ertan2022-03-252022-03-252002http://hdl.handle.net/20.500.12575/78066SUMMARY The Assesment of the Productivity and Profitability of Trout Farms in Malatya and Its Nearby Provinces This PhD study aimed at assessing the partial and overall productivity in resource use and profitability in the Rainbow trout farms in Malatya and its nearby provinces by bulding an Cobb-Douglas type econometric model. The data used in the study obtained with an interview survey from randomly selected 33 Rainbow trout farms in years 1999, 2000 and 2001. The trout farms were analysed according to size of farms as well as at agregrate of all farms.The farms were grouped in to three categories, namely small scale ( <15 ton / year ), medium scale ( 1 5-30 ton / year ), large scale ( 30 > ton / year ). The proportion of cost of feed, labour, fish material, general overhead, repair and maintenance, health, depreciation and other costs including the cost of electricity, fuel and water in the total cost accounted for 66,23, 18,05, 5,86, 1,72, 1,23, 0,89, 0,62, 0,55 respectively. The average financial rantability and rantability factor ratios of the farms were calculated to be 38,64, and 34,23 in 1999, 59,38 and 43,08 in 2000, 30,13 and 25,63 in 2001, 41,27 and 33,84 as the average of three years. According to the results of the Cobb-Douglas production function, increasing returns to scale in small, medium, large scale and all farms were determined. The marginal product values at all trout farms basis were calculated to be 1,38 for fish material, 1,65 for feed, l,43for labour and 2,30 for the other costs. Average productivity indexes estimated by using the real and predicted production values of farms were calculated to be 94,29, in small scale farms, 98,54 in medium scale farms, 99,53 in large scale farms and 97, 1 1 in overall farm basis.trVeteriner HekimliğidoctoralThesis