Jurnal Ilmiah Mahasiswa Kelautan dan Perikanan Unsyiah Volume 3, Nomor 2: 34-44 April 2018 ISSN. 2527-6395 34 Pertumbuhan, Kelangsungan Hidup, dan Daya Cerna Ikan Nila Gesit (Oreochromis Niloticus L) yang Diberikan Arang Aktif dalam Pakan dengan Sumber yang Berbeda Growth, Survival Rate, and Digestibility Tilapia (Oreochromis Niloticus L) Addition activated Charcoal in Feed with Different Sources Arif Muslim 1 *, Muhammadar 1 , Firdus 2 1 Program Studi Budidaya Perairan Fakultas Kelautan dan Perikanan Universitas Syiah Kuala, Darussalam, Banda Aceh; 2 Program Studi Biologi Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Syiah Kuala, Darussalam, Banda Aceh *E-mail korespondensi : muhammadar@unsyiah.ac.id ABSTRACT This study aims to analyze the effect of active charcoal gived in feed for growth, survival and digestibility of tilapia GESIT (Oreochromis niloticus L). This research was conducted at marine aquatic biology laboratory of marine and fishery faculty of syiah kuala university on september-november 2017. The proksimat test of feces were conducted at the development agency of the industrial research and standardization center of banda aceh. The method used in this research is a complete randomized design method with 5 treatment levels with 3 replications. Parameters tested were fish growth, digestibility, feed conversion ratio, and Survival rate. The treatment in this research were treatment A (control), B addition of activated charcoal rice husk, C treatment of mangrove wood, D sawdust treatment, and E treatment coconut shell. Based on the result of ANOVA test indicated that active charcoal giving in feed significantly influence (P<0.05) to growth, digestibility and feed conversion,and survival rate. The best treatment with the highest value in this study was B treatment with additional rice husk with average of absolute weight growth ranged from 5.65 to 8.57 g, absolute longevity growth ranged from 3.61 to 5.35 cm, growth rate specifically ranged from 0.80 to 0.97% / day, the daily growth rate ranges from 0.14-0.20%/g, the feed conversion is between 4.43 g and 2.37 g , the survival is 73.33%- 86.66 %, and protein digestibility ranged from 56.51 to 93.46%. Keywords:Activated charcoal,proteindigestibility,growth, Oreochromis nilticus L ABSTRAK Penelitian ini bertujuaan untuk mengetahui pengaruh pemberian arang aktif dalam pakan terhadap pertumbuhan, kelangsungan hidup, dan daya cerna ikan nila GESIT (Oreochromis niloticus L). Penelitian ini berlangsung pada bulan September- November 2017 pemeliharaan ikan dilakukan di Laboratorium Biologi Laut Budidaya Perairan Fakultas Kelautan dan Perikanan Universitas Syiah Kuala. Uji proksimat terhadap feses ikan dilakukan di Balai riset standardisasi industri banda aceh. Metode yang digunakan pada penelitian ini adalah metode rancangan acak lengkap (RAL) dengan 5 perlakuan dan 3 kali pengulangan. Parameter yang diuji adalah pertumbuhan ikan, daya cerna, konversi pakan, dan kelangsungan hidup. Perlakuan pada penelitian ini yaitu perlakuan A (kontrol), perlakuan B arang aktif sekam padi, perlakuan C kayu bakau, perlakuan D serbuk gergaji, dan perlakuan E