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ABSTRACT Research by survey method was conducted to know population performance of Saburai goat at Saburai goat breeding area, Tanggamus regency, Lampung province based on natural increase (NI) and net replacement rate (NRR). Observation was done begin 2015 when Saburai was declared as local genetic resources in 2015 by Ministry of Agricultural. Population of Saburai goat in 2015, 2016, 2017, and 2018 were 1,469 heads, 2,369 heads, 2,860 heads, and 3,293 heads. Male and female Saburai goat were used as breeding stock for 4.44 ± 0.20 years and for 5.03 ± 0.21 years, respectively. Replacement stock needed in 2018 were highest (25.39 % for male and 27.91 % for female). Percentage of Saburai goat birth were 9.72 ± 6.57 % for male goat and 19.72 ± 5.18 % for female. Value of NI for male and female goat were 9.25 % and 19.13 %, respectively. Value of NRR in 2018 were highest (male 114.69 % and female 458.94 %). It could be concluded that population performance of Saburai goat from 2015 up to 2018 were increasing.