Analisis Pendapatan Usaha Ikan Nila (oreochromis niloticus) dengan Pemberian Pakan Pelet Organik (ppo) dari Limbah Feses Sapi, Bungkil Kedelai, Dedak, dan Probiotik

Abstract. The objective of present study was to determine effect of feeding tilapia  fishes (Oreochromis niloticus) with the commercial diets partially substituted by Organic Pelet Feed  (OPF) composed by cattle feces,  soybean meal, rice bran, and probiotic on total income.  The study was conducted  in  Research Station II Ie Sueum,  Syiah Kuala University,  June 1 until  August 29,  2016.  The study used 1600 of  a week old of tilapia fish.  The study was performed into completely randomized design (CRD) consisting of 4 treatments and 4 replications.  Each replication was an experimental unit, consisting of 100 fishes.  The treatment tested was feeding tilapia fishes with  commercial diets partially substituted by OPF with the level of  0, 10, 20, and 30%, respectively.  The OPF was made up of cattle feces 50%+rice bran 30%+soybean meal 19%+probiotic 1%.  Parameters measured were final body weight (FBW),  total feed consumption (TFC), and Income Over Feed Cost (IOFC) as well as total income.  The data of  FBW and TFC were analyzed by Analysis of  Variance (ANOVA) (Ott, 1993), while  the data of IOFC and total income were analyzed by the economical parameters of R/C and B/C ratio (Soekartawi, 1995).  The results of study showed that OPF could be used up to 20% to substitute commercial diet in raising tilapia fish with the best level was  10% most significantly (P0,01) increasing body weight of tilapia fish.  It was considered that the highest income of  raising tilapia fish was resulted by administrating 10% OPF.