Abstract
The pig production system was promoted to intensive system utilizing import grains and automatic equipment in Japan. The purpose of this study was to assess the greenhouse gas (GHG) emissions of Japanese pork production system using the life cycle assessment method. The study included processes feed production, pig production with manure management, slaughterhouse and retailer. The functional of the system was to produce 1kg pork. The GHG emissions of 1kg pork was 11.12 kg-CO2e. The impact of each process for the total GHG emissions were 21% at feed production, 12% at pig production, 35% at manure management, 2% at slaughterhouse and 30% at retailer.
