Table 6. Emission factor (EF), default volatile solid rate (VSrate), default average body weight (ABW) to calculate CH4 emissions from manure management
| Animal Category | 1996 GL | 2006 GL | 2019 Refinement |
| EF (kg CH4/head/year) | EF (kg CH4/head/year) | VSrate (kg VS/1000 kg animal mass/day) | ABW (kg) | VS (kg/animal/year) | EF (g CH4/kg VS)* |
| Solid storage | Liquid system | Other |
| Dairy cattle | 36 | 53 | 9.3 | 650 | 2,206.43 | 6.4 | 59.5 | - |
| Hanwoo cattle | 1 | 1 | 7.6 | 407 | 1,129.02 | 5.1 | 47.1 | - |
| Beef cattle | 1 | 1 | 7.6 | 407 | 1,129.02 | 5.1 | 47.1 | - |
| Swine | 3 | 3 | 4.9 | 59 | 105.52 | 1.5 | 111.6 | - |
| Chicken layer | 0.078 | 0.03 | 9.4 | 1.9 | 6.52 | 10.5 | 96.7 | - |
| Chicken broiler | 0.078 | 0.02 | 16 | 1.1 | 6.42 | 9.6 | 89.2 | - |
| Duck | 0.078 | 0.01 | 7.4 | 2.7 | 7.29 | 5.1 | 47.1 | - |
Data from IPCC [10], IPCC [12], IPCC [13].
Emission factors in 2019 Refinement depends on typical manure treatment for each livestock category based on default MCF and B0, using equation MCF*B0*0.67.