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Table 8 Daily methane production (g/day), emission factors (mean ± sd., kg CH4 kg/head/year), and emission intensity (CO2-eq kg−1 MY) for adult female

From: Enteric methane emission factors of smallholder dairy farming systems across intensification gradients in the central highlands of Ethiopia

Farming system

Urban

Peri-urban

Rural

MY(kg FPCM)

10.40 ± 0.84a

8.95 ± 1.11b

1.77 ± 0.18c

DMP (g/day)

199.2 ± 26.2a

190.21 ± 25.99b

92.9 ± 12.03c

EF (CH4 kg/head/year)

72. 71 ± 8.31a

69.43 ± 7.51b

33.61 ± 3.17c

EI (CO2-eq kg−1MY)

0.6432 ± 0.10a

0.71 ± 0.10b

1.78 ± 0.23c

  1. Different superscript letters in the same row indicate significant differences between farming systems (P < 0.05)
  2. FPCM Fat and protein corrected milk