This study was carried out to investigate the effect of stocking rate of tilapia aurea (Oreochrcrnfs aureus) and fertilization rate on the growth performance , water quality in 18 earthen ponds (1000 m2 f pond) representing two stocking densities [1500 and 2000 fish per pond) along with three manuring rate (150,250 and 350 kg chicken manure l fedden ) . Average initial weight was 65.8 g ffish .Results obtained can be summarized as follows : 1-Regardless of stocking tensity, increasing the fertilization rate from 150 to 350 kg lfeddan increased significantly (p < 0.05 Jthe body weight and length during all experimental periods -On the other hand ,increasing the stocking density from 1500 to 2000 fish l pond decreased significantly body weight and length . 2-Treatments applied released significantly effects on carcass trait tested . 3-The average of water quality parameters as affected by treatments during the present study within the range recommended for fish cultured. Based on the results obtained it could be recommended that, the using of chicken manure 350 l feddan weekly with stocking density 1500 tilapia aurea lpond , had the higher yield and carcass quality