Dose-dependent inhibitory effects of an investigational feed additive containing bromoform on methane emissions from cattle fed fresh pasture

Abstract

Bromoform, a bioactive compound in certain seaweeds, has gained attention for its methane-mitigating effects in ruminants. Research is underway to use synthetic bromoform as an alternative for providing consistent and predictable dosing of the bioactive compound, but its inherent volatility and liquid form limit its application. To address these challenges, an investigational feed additive (IFA) in the form of a powder containing synthetic bromoform has been developed by Rumin8 Pty Ltd., West Perth, WA, Australia. The objective of this study was to evaluate the effect of the Rumin8 IFA on methane emissions from cattle fed fresh pasture. Sixteen 18-month-old Hereford × Friesian heifers (427 ±..