Opportunities for Reduction of Methane Emissions by using different Feed Ingredients in Ruminant Nutrition

Abstract

As the threat of global warming escalates, the livestock industry looks into exploring how different feed additives may reduce greenhouse gas emissions, namely methane gas. The reviews of various literature explore new and innovative nutritional additions in the daily rations of ruminant species that help reduce methane emissions significantly for the benefit of reducing greenhouse gases globally. Feed additives which suppress the enzyme that triggers methane production as well as those that modulate the rumen microbiome such as various species of algae, forages and specific essential oil blends are only some of the solutions that will be discussed in this review. Authorised feed additives on the market that are readily available and showing their effects will also be evaluated. In vitro and in vivo studies using different methods of experimenting will be discussed.