The livestock subsector contributes 14.5% of greenhouse gas emissions, including methane and carbon dioxide, either directly from feed production activities or indirectly from rumen fermentation. The purpose of this study was to study the addition of N-PN Ruminofrass to Pakchong Grass silage on partial volatile fatty acid (VFA), N-Amonia (N-NH3) and Methane (Ch4) in vitro. This research was con…