This research aims to know the effects of using Omega 3, Omega 6 Fatty Acid and Cholesterol synthetic on Hormone Testosterone Level, voice frequency, and male quails reproduction organ. The research used 175 male quails which were divided in to 7 treatment groups; R0 (control), R1 (0,163 mg eicosapentaenoic acid), R2 (0,326 mg eicosapentaenoic acid), R3 (0,163 mg 5,8,11,14 eicosatetraenoic acid), R4 (0,326 mg 5,8,11,14 eicosatetraenoic acid), R5 (20 mg cholesterol NF), R6 (40 mg cholesterol NF). Cholesterol and fatty acid treatment were given orally for five days in succession for each treatment group. Data were analyzed with one-way analyze, and then continued with orthogonal contrast test and morphometric test. The research output, omega 3, omega 6 fatty acid with double dose (0,326 mg), showed the best response: the increase of the testis weight, height, diameter, and volume. The highest hormone testosterone level was showed by R2 treatment. The conclusion is that using 0,326 mg omega 3 and omega 6 fatty acid affected the reproduction organ's improvement and male quail's blood plasma and hormone testosterone level