Konversi Produksi Daging Sapi Potong Terhadap Emisi Metana Di Kabupaten Semarang

Abstract

. This study was aimed to evaluate the conversion between meat production and methane emission of beef cattle in Based on the data of beef cattle population and meat production. The data of methane emissions were calculated using Tier 1. Data of beef cattle population and meat production in Semarang Regency from 2015-2019 were used to calculate the conversion of meat production and methane emissions. The beef cattle population in Semarang Regency from 2015-2018 decreased sequentially by 10.3%, 1.3%, 1.8%, and increased in 2019 about 7%. A similar result was shown in meat production from 2016 to 2018. The meat production decreased sequentially by 11.42%, 0.30%, and 1.95%, but its increased 7.04% in 2019. The highest meat production was shown in 2015 (163.86 kg/head). Decreasing the beef cattle population led to reduced methane emissions on enteric fermentation and manure management, as shown in 2015-2018, and an increase in 2019. The average methane emission from enteric fermentation was 0.466 Gg CH 4 /year, while waste management was 0.009917 Gg CH 4 /year. The conversion value between meat production and methane emission in Semarang regency is about 1,94 -7 . The best conversion rate was shown in 2018, about 1.42 -7 . It can be concluded that although the livestock population decreases, the number of livestock productivity increases so that the meat production increases. The increase in meat production was not in line with the livestock population, resulting in lower methane gas emissions per unit of meat production. The low conversion rate of methane emissions per unit of meat production results in an environmentally friendly farm.