ANALYSIS OF THE EFFECT OF FERMENTED DUCK BONE FLOUR IN ARTIFICIAL FEED ON TILAPIA (Oreochromis niloticus) PRODUCTION

The problem of increasing fish feed prices in Indonesia, especially in Sidenreng Rappang Regency, South Sulawesi, is still a major challenge in the fish farming process.Therefore, alternative solutions are needed to overcome this problem.This study aims to determine the effect of different doses of mixed microorganisms in artificial feed on feed efficiency, survival and feed conversion ratio (FCR) of tilapia.This study used a completely randomized design (CRD) method with 5 treatments and 3 replications so that there were 15 experimental containers, the containers used were 15 meatballs with a diameter of 18 cm each with a water capacity of 15 liters.Treatment A = 10% fermented duck bone meal, treatment B = 15% fermented duck bone meal, treatment C = 20% fermented duck bone meal, treatment D = 25% fermented duck bone meal and treatment E = 30% fermented duck bone meal.Sampling was conducted weekly, to determine the weight of the test animals and adjust the feeding.Data were analyzed using analysis of variance (ANOVA) if there was a significant effect then continued with the W-Tukey test to see which treatment gave the best results.Water quality measurements were conducted daily using a digital thermometer and pH meter.Based on the results of the study showed that treatment D with a dose of 25% fermented duck bone meal was the best treatment in terms of survival parameters (86.67 2.88a) and FCR (1.826 0.07a) and treatment E with a dose of 30% fermented duck bone meal was the best treatment in terms of feed efficiency parameters (5.029 0.35a).The results of water quality analysis during the study showed that temperature (27-29) and pH (7.7-8.5) were within a stable range and supported cultivation.