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There are many ways to improve the performance and productivity of broiler chickens In animal husbandry. One method that is often used is by giving antibiotics into feed or livestock rations. Antibiotics given to chickens aim to reduce harmful microorganisms in the digestive tract of chickens. The use of antibiotics in the long run if consumed continuously will cause residues in the consumers body and this is very dangerous for those who consume them. Antibiotics are used to improve meat and egg production. a combination of probiotics and prebiotics aims at nutritional therapy and maintaining digestive health, to increase the digestibility of foods that contain a lot of crude fiber, eliminate the smell of ammonia in feces, increase the immune system, help increase growth and productivity, compete against pathogenic bacteria that harm and improve quality feed by increasing protein levels. The purpose of this study was to analyze the maintenance of broiler chickens using synbiotics. The study used broiler DOC with a total of 200 animals obtained from the Bandar Lampung which was maintained in two maintenance cages, each containing 100 chickens. The first partition without using Sinbiotik (control) and the second bulkhead using synbiotics mixed into drinking water. The results of the study showed that giving sinbotik had an impact especially on broiler performance with consumption of 1.522 g / head ration, Weight gain 1,152.1 g / head, FCR 1.32 and 0% mortality, and ration efficiency of 75%