This study aims was to analyse the effect of substitution commercial ration with fermented reject water kale on economic performance super rooster native chickens. The material used 80 heads 5 week old a complete randomized design (RAL) 4 treatments replications each replication consisted treatment tried R0: 100% ration, R1: 90% + 10% kale, R2: 80% 20% 70% 30% kale. variables observed were prod...