ENVIRONMENTAL IMPACT OF SMALL-SCALE BROILER CHICKEN MANURE MANAGEMENT IN BULUKUMBA, INDONESIA

• Main Author: Rakhmani, Dini
• Format: Theses
• Language: Indonesia
• Subjects: Masalah dan pelayanan sosial lainnya
• Online Access: https://digilib.itb.ac.id/gdl/view/69493
• Institution: Institut Teknologi Bandung

The increasing number of broiler chicken production generates a higher quantity of manure. Generally, the farmers utilized chicken manure as organic fertilizer. However, its improper treatment induces environmental degradation. This study assessed the environmental impacts of manure management systems (MMS) in small-scale broiler chicken farms in Bulukumba, Indonesia, using a partial life cycle approach. There are three scenarios as an initial step to assessing the environmental impact of MMS. These development scenarios analyze the treatment and utilization of broiler chicken manure to reduce environmental impacts. Results showed that the main contributors to global warming and acidification were housing and processing stages, while manure land application was the key contributor to eutrophication potential. According to the net emissions, Scenario 2 has the lowest GWP results compared to the Baseline scenario and Scenario 1. Considering the contribution of all stages to the environmental impacts, the best method to reduce the environmental impacts from small-scale broiler chicken MMS is anaerobic digestion. The process could reduce N2O and NH3 emissions, utilize biogas, and produce digestate with high nitrogen content to replace the use of chemical fertilizers. However, anaerobic digestion facilities with high technology of digester tanks and close post-storage are necessary. Future studies need to consider cost analysis to determine the probability of improvements implemented on the MMS and the effects of other mitigation practices in manure application.