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Broilers in the closed house can increase the density chickens per m2. The study was conducted to see the performance of broilers that are kept in closed house with different populations. This research was conducted with a population of 20,000, 22,000 and 25,000 with different maintenance periods in Teaching Farm Closed house Faculty of Animal Husbandry Hasanuddin University. Provision of feed and drinking water is given by ad libitum. The parameters observed were body weight (BW), feed intake (FI), Feed Convertion Ratio (FCR), mortality and Index Performance (IP). Weighing of body weight, feed consumption and mortality calculations are carried out until week III of the maintenance period. The research data is processed by descriptive method. Based on the research results obtained population data of 20.000 tails with 1.07 kg BW, 1.376 FI, 1.286 FCR, 1.21% Mortality, IP 391, population of 22,000 with 1.1 kg BW, 1.390 FI, 1.264 FCR, 1.77% Mortality with IP 407; population of 25,000 tails with BW 1,095 kg, FI 1,377, FCR 1,256, Mortality 1.82% and IP 406. It was concluded that the highest performance was obtained with a population of 22,000 tails.