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Abstrak :
This research was conducted to study the effect of the mixtures of sago waste and chicken excreta fermented utilization in rations on broiler performance, carcass physical quality as well as the meat chemical quality. The mixture of sago waste and chicken excreta was fermented in 48 hours using effective microorganism-4. The research was biological experiment using the respective fermented materials in broiler rations with level of 0% (R0), 4% (Rl), 8% (R2) and 12% (R3). Each dietary treatment had five replications of five broiler chickens each. Variables was observed were broiler performance (feed consumption, body weight gain and feed conversion), carcass physical quality (live weight, carcass percentage, abdominal fat percentage) and chemical quality of meat (water contents, fat and protein). Data were analysed using Analysis of Variance of one way Completely Randomized Design, and differences between means were tested using Duncan Multiple Range Test. The results indicated that the use of fermented mixtures up to 8% in broiler rations had increased body weight, live weight and carcass percentage, and fat flesh content and it was better than birds receiving control ration. The use of 12% fermented materials in the ration had no significant effect on feed consumption, abdominal fat percentage, as well as water contents and protein of the flesh.

Abstrak :
This study aimed to analyze the heat release rate from the combustion process of bioethanol from sago waste to determine the viability and feasibility of low-concentration bioethanol as an alternative fuel. The heat release rate, exhaust gas, and flame temperature were measured using a cone calorimeter, and bioethanol combustion was conducted using the pilot ignition method, with an ethanol quality range of 60–70%. The analysis that the heat release rate of 60% bioethanol combustion ranged from 20 to 140 kW/m2, while a lesser range resulted from 70% bioethanol combustion (18–45 kW/m2). The flame temperature for 60% bioethanol was found to be 440°C, while the smoke and orifice temperature was 150°C. The combustion of 70% bioethanol produced a flame temperature of 450°C and a smoke and orifice temperature of 120°C after approximately 6 min of combustion. This study contributes a solution for meeting the energy demand in rural areas, where the access to and availability of major fuel resources are limited. In addition, from the obtained results, this research concluded that bioethanol made from sago waste is suitable as a clean and alternative fuel for household applications in rural areas.