Figure 2. Methane emission in L per kg digestible neutral detergent fiber intake (dNDFI) of domestic ruminants (literature data) and camelids (own measurements, literature data included in the regression analysis and literature data not included due to differences in methodology) in relation to body mass.
95% confidence intervals of the regression lines are given in brackets. R2 values of the regression lines are 0.02 for ruminants and<0.001 for camelids. For data sources see Table S1.