Table 9 Uncertainties in enteric methane emission factors
Farming system | Cattle categories | |||||
|---|---|---|---|---|---|---|
Adult female (%) | Adult male (%) | Growing female (%) | Growing male (%) | Calf (≤ 1) (%) | Fattening male (%) | |
Urban | 20.1 | 17.1 | 31.7 | 22.6 | 34.5 | Â |
Peri-urban | 19.4 | 19.4 | 29.4 | 21.7 | 37.5 | Â |
Rural | 16.7 | 15.5 | 31.3 | 14.6 | 27.9 | 24.1 |
Mean | 19.6 | 16.9 | 30.95 | 16.3 | 31.9 | 24.1 |