This study was carried out to investigate the effects of sunflower oil and taltow or their different combinations on the growth performance and mortalite in broiler rations. A total of 560 chicks were divided into (our groups each containing 140 animals. The ratios of the groups were added 4.5 % sunflower oil, 0.45 % sunflower oil + 4.05 % tallow. 0.9 % sunflower oil + 3,6 % tallow and 4.5 % tallow. The trial was lasted in 42 days. At the end of fhe experiment, body weights were 1718.52 1828.50, 1771.15 and 1816.38 g (PcO.05). Feed consumption of the groups were 69.93. 74.74, 73.43 and 76.01 g; feed conversion 1.75, 1.75, 1,78 and 1.80 kg, respectively, Mortalite were detected to be as 2 14. 1.42, 2.14 and 2,85 %, respectively. In conclusion, the tallow can be replaced with sunflower oil in broiler ratios. To add sunflower oil to taltow in to % quantity could effect performance in a positive manner while no negative elfect on mortality by adding 10 % sunflower oil was observed.