Financial Analysis of Costs of Fish Feed Production with Restaurant Waste as Basic Ingredients (Case Study in Jatinangor District, Sumedang Regency, West Java)

As an educational city, Jatinangor has a fairly large population density. In turn, it generates restaurant organic waste in large quantities. Excessive production of organic waste will be a problem if it is not accompanied by good management and utilization. One of the efforts in utilizing restaurant waste is to turn the waste as fish feed. This study aims to calculate the production of restaurant waste and analyze the cost of production of fish feed using restaurant waste flour. The production of restaurant waste was calculated using purposive random sampling, while the cost of feed production was determined by using variable costing method. Questionnaires and research primary data were used to collect data. The results obtained from this study were as such: production of restaurant waste in the Jatinangor area is 261.7 Kg/day, the cost of production for fish feed with the basic ingredients of restaurant waste flour is 70,013,127 IDR with a production capacity of 6,913.1 kg of fish feed per year, so that the cost of feed per kilogram is 10,127.60 IDR, and the selling price of feed is 12,200 IDR/kilogram with a profit of 20%. Thus, it can be seen that independent feed production using restaurant waste can be a solution in the utilization of waste and can also be used as a source of income for the surrounding community.

Valorization of Restaurant Waste Oil Over Cow-bone Doped Siliceous Termite Hills Catalysts Towards Biodiesel Production

Treated termite hill is a potent heterogeneous catalyst in the synthesis of biodiesel from restaurant waste oil (RWO). Two catalysts (raw cow-bone supported on silica; R-SC1.5 and calcined cow bone supported on silica; K-SC1.5) were developed and used in biodiesel production. The maximum conversion of RWO was 95.12 % using K-SC1.5 at reaction time 2.5 h, methanol to oil ratio 9:1, temperature 65°C and catalyst loading of 2 %w/w. The prepared catalysts were characterized using SEM, EDAX, FTIR, XRD and BET analysis. The kinetics of the RWO with R-SC1.5 and K-SC1.5 was further studied. The Ea and A were found to be 41.4 kJ mol− 1, 53.41 kJ mol− 1 and 2.24 ×104 min− 1, 2.29×106 min− 1 respectively. The transesterification reaction adhered to first order law, while physicochemical properties were within ASTM limits. Reusability of K-SC1.5 was also examined, which revealed effectiveness up to 5 reuses without significant reduction in biodiesel yield.

PRODUKSI MAGGOT BSF (BLACK SOLDIER FLY) SEBAGAI PAKAN YANG DIBUDIDAYA DENGAN MEDIA YANG BERBEDA

This study aimed to determine the production of BSF maggots as feed cultivated with different media. The research material was 6 grams of BSF larvae eggs. The method used in this study was an experiment with a completely randomized design (CRD) where there were four treatments three times repetition so that 12 experimental units were obtained. The experiment consisted of P0 = rice bran, P1 = market waste, P2 = household waste, and P3 = Restaurant Waste. The results showed that BSF maggot production used different media against rice bran, market waste, household waste, and restaurant waste had a significant effect (P> 0.05) on the maggot production. The best treatment is in the P3 treatment, and the lowest treatment is in the P0 treatment, where the P3 treatment uses a comparison of the restaurant's organic waste media with the same amount, namely 7.3 kg to 21 days of age from 0.50 grams of BSF maggot eggs and is able to produce 2816.66 adult maggot gram

Effect of Adding Fermented Restaurant Waste Meal with Different Concentration to Physical Quality of Fish Pellet

This study aims to evaluate the physical quality of fish feed pellets formulated with different concentration of fermented restaurant waste meal (FRWM). The treatments given consisted of treatment A (control, without adding FRWM), treatment B (adding FRWM 10%), treatment C (adding FRWM 20%), treatment D (adding FRWM 30%) and treatment E (adding FRWM 40%). The study was conducted from July to October 2019 at the Aquaculture Laboratory and Hatchery in Ciparanje of the Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. The parameters observed include the breaking rate test, sinking rate test, durability test, and stability test. Results showed that the use of FRWM given significant difference (p<0.05) for breaking rate and stability value. However, result showed that the sinking rate and durability value generally did not show significant difference (p>0.05). The FRWM can be used up to a concentration of 30% which gives effect to the sinking rate of the fish pellet which is similar to the control fish pellet namely 0.38 cm/s while the concentration of the meal of the FRWM gives the closest value of breaking rate and stability control as much as treatment B (adding FRWM 10%) with a break rate for 19.93 hours and stability in water for 10 minutes by 91.66%, 30 minutes by 87.60%, and for 60 minutes by 75.26%. The different adding concerntration of FRWM gives effect to the quality of fish pellet while more than 10% can decrease its quality. The difference were show in all treatment in some parameters observed.

Suplementasi Keong Mas (Pomacea canaliculata Lamarck) dalam Ransum Berbasis Limbah Restoran dan Ampas Kelapa terhadap Performa Itik Hibrida

This research was aimed to evaluate the effect of boiled golden snail (Pomacea canaliculata Lamarck) supplementation on duck diet based on restaurant waste and coconut pulp to duck performance. A total of 80 Mojosari-Peking hybrid ducks 23 days old were reared for 40 days in this study. The treatments diet was as follows: control diet and 3 treatments diet of boiled golden snail supplementation levels of 10%, 15% and 20%. This research used a completely randomized design with 4 treatments and 4 replicates. All data was analyzed by variance and if there were signiϐicantly differences, further analysis applied was a Duncan Multiple Range Test. The variables observed were duck performance (feed consumption, body weight gain and feed conversion ratio) and carcass percentage. The results showed that supplementation of boiled golden snail on diet based on restaurant waste and coconut pulp 10%-20% signiϐicantly (p<0.05) increased body weight gain, ϐinal body weight, percentage of carcass but decreased feed conversion ratio. It can be concluded that 15% of boiled golden snail (Pomacea canilaculata Lamarck) supplementation on diet based on restaurant waste and coconut pulp can be use as diet of Mojosari-Peking Hybrid duck