Külekçı, Murat; Bayram, Bahri

In this study was aimed to determine the feed efficiencyof calves. The data used in the researchowned by 45 calves including Brown Swiss and Holstein Friesian races were feed with milk andcommercial concentrate during weaning period. Stochastic Frontier Analysis (SFA) was used tomeasure the efficiency In SFA, Cobb- Douglas Production function was used. Live weight ga in ofcalves was the output of model. . Two inputs (commercial concentrated feed and milk intaking tothem during weaning period)and six inefficiency variables ((race of calve, gender of calve, borningweight, weaning weight, intaking period of milk and milk quantity intaking) were used in SFA . Itwas founded that the parameters of weaning weight and intaking period of milk were statisticallysignificant. However, The estimated parameters of efficiency showed that weaning weightpositively affected to the efficiency, while intaking period of milk negatively affected.