Inventory of Methane Gas Emissions from Cattle Digestion at the Simantri Cattle Farm in Gianyar Regency

Awareness of health issues caused by global climate change has recently become more evident. One such issue is environmental health, particularly as it relates to livestock farming, such as cattle farming. Bali Island is one of the provinces in Indonesia with a large cattle population. Efforts to increase the cattle population continue in line with rising demand for cattle products. However, increasing the number of cattle also leads to environmental pollution and degradation, which necessitates serious consideration and action to address these problems. A system is needed that can improve livestock productivity without damaging the environment—one that is economically beneficial and socially acceptable to the community. Environmental health refers to optimal conditions that support achieving an optimal standard of living. The objective of this study is to inventory methane gas emissions produced by cattle in the Simantri program, estimate the volume of waste generated by cattle per day, and document mitigation efforts against methane gas formation at Simantri farms in Gianyar Regency. The sample locations were selected in Gianyar Regency, with a total of 30 cattle and respondents. According to Lindner et al. (2001), the minimum number of respondents required for this type of research is 30. Data were obtained through questionnaire responses and calculated using the IPCC 2006 estimation formula. Descriptive analysis was used to illustrate the phenomena and facts being studied.