Eliminating prediction bias in CO₂ emission models for lactating cows by incorporating feed intake: Accurate quantification of methane-reducing effects using a CO₂-based method, demonstrated by a case study on 3-nitrooxypropanol

This study highlights the importance of incorporating DMI as an explanatory variable to achieve accurate and unbiased predictions of CO₂ emissions. These findings would contribute to the appropriate application of the CO₂-based method for evaluating the CH₄-reducing effects of feed additives.