Methane 3-NOP calculator

Methane inhibitors can significantly reduce methane production in the rumen. The calculation below has been created from the equations found in ‘A meta-analysis of effects of 3-nitrooxypropanol on methane production, yield, and intensity in dairy cattle‘ and provides a guide to the likely effects of changes in dietary chemical composition.

When entering the value for Crude Fat, a reduction should be made where bypass fats are being used. Bypass fats may not have an effect in the rumen (depends on the product).