The objective this of the research was to study an optimal level supplementation of lactic acid bacteria on the performance of quail (Coturnix- colurnix japonica) at starter phase. It was held for 6 week at Field Laboratory of PS. NMT Animal Nutrition and Feed Agriculture Faculty, University of Sriwijaya. A Completely Randomized Design with 4 treatments wich were P0 (control), P1 (suplementatio…