ABSRACT:We determined the factors affecting trout production in the Black Sea Region, Turkey, on 55 trout farms. The factors affecting trout production were studied using the Cobb-Douglas production function. The explanatory variables in the model explained 99.4% of the variation in trout production. The partial percentage of the feed-use variable was 99%, whereas that of all other variables was 1%. The education level of operators, feed use and capital use positively affected trout production, whereas the stocking density and pond size negatively affected trout production. Technical assistance and extension programs concerning stocking, feeding and disease control that resulted in decreased stocking density and increased feeding efficiency may increase trout production by approximately 20%.
This research generated stochastically efficient farm plans in the relevant range of risk aversion and calculated the efficiency measures for the three representative farm sizes in the central Anatolian region of Turkey. Utility-efficient programming was used to determine an efficient set of farm plans. Research results showed that total net farm revenue increases for all farm sizes as risk aversion decreases. An economic efficiency score of 0.54 for both small and medium size farms indicated that there is considerable scope for farmers to increase their total net farm revenue using existing technology without additional inputs. Allocative and technical inefficiencies of sampled farms were 0.22 and 0.24, respectively. Thus, supplying complete technical packages for farms may stimulate the adoption of new technologies. Focusing on production practices and marketing efficiency in farmers' training and extension programmes may also help to increase economic efficiency in the research area.
In this study, a variable price programming model was developed to derive normative hazelnut function and calculate price elasticity of supply for hazelnut in Carsamba Plain of Samsun, Turkey. Economic analysis revealed that the composition of the total assets of hazelnut farms seemed to be unbalanced. In addition, the efficiency of resource use was not adequate in sample hazelnut farms. Research results also showed that hazelnut production would stop on the Carsamba Plain completely when the hazelnut price is less than $ 0.57 per kilogram. Calculated price parities between hazelnut and corn, rice, and sugar beet were 3.87, 1.77, and 15.21, respectively. In conclusion, relying on market forces would increase land and labor use efficiency.
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