sustainability Review Towards Sustainable Livestock Production: Estimation of Methane Emissions and Dietary Interventions for Mitigation Pragna Prathap 1 , Surinder Singh Chauhan 1 , Brian Joseph Leury 1, Jeremy James Cottrell 1 and Frank Rowland Dunshea 1,2,* 1 Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC 3010, Australia;
[email protected] (P.P.);
[email protected] (S.S.C.);
[email protected] (B.J.L.);
[email protected] (J.J.C.) 2 Faculty of Biological Sciences, The University of Leeds, Leeds LS2 9JT, UK * Correspondence:
[email protected] Abstract: The increasing need for sustainable livestock production demands more research in the field of greenhouse gas (GHG), particularly methane (CH4), measurement and mitigation. Dietary interventions, management, and biotechnological strategies to reduce the environmental impacts and economic implications of enteric CH4 emissions are needed. While the use of biotechnological interventions and management strategies can be challenging on a routine basis, feed additive supple- mentation appears to be the most researched, developed, and ready to use strategy to mitigate enteric CH4 emissions. This paper discusses various recently developed feeding strategies to reduce enteric CH4 emissions in livestock. Additionally, the manuscript reviews various technologies developed for CH4 estimation since the accurate and reliable estimation of CH4 emissions can be a limiting step Citation: Prathap, P.; Chauhan, S.S.; in the development and adoption of any mitigation strategy. Leury, B.J.; Cottrell, J.J.; Dunshea, F.R. Towards Sustainable Livestock Keywords: climate change; livestock production; methane estimation; nutritional strategies; in vitro Production: Estimation of Methane fermentation; gas chambers Emissions and Dietary Interventions for Mitigation.