Methane emissions from dairy cow and swine manure slurries stored at 10°C and 15°C

emissions from dairy cow and swine manure slurries stored at 10°C and 15°C. Canadian Biosystems Engineering/Le génie des biosystèmes au Canada 45: 6.1-6.6. Livestock waste represents a potentially important source of methane (CH4) emissions, but little experimental data are available on CH4 production from manure stored on farms. The objective of this study was to determine the effect of slurry characteristics (high and low total solids (TS) contents), temperature (10 and 15°C), and storage duration (180 and 272 days) on methane emissions from dairy cow and swine manure slurries. The manure was stored in closed 232-L plastic barrels simulating the anaerobic conditions of a farm-scale storage tank. Storage conditions and manure characteristics were typical of Canadian commercial livestock farms. Over the 272-day storage period, barrels filled with swine manure produced from 1.32 to 3.81 L CH4 per L of manure (L/L) at 10°C and from 7.34 to 7.43 L/L at 15°C. When evaluated o