Methane Emissions and Dry Matter Intake under Impact of Saccharomyces cerevisiae Supplementation on Dairy Cow

Abstract

Methane emissions from livestock, particularly enteric methane, significantly contribute to global warming. As concerns about climate change intensify, the livestock sector, especially dairy and beef cattle, is under scrutiny for its substantial role in greenhouse gas emissions. The need for higher productivity has resulted in use of natural fermentation agents like Saccharomyces cerevisiae that can be methanogenic. The use of Saccharomyces cerevisiae has been under question for it’s possible methanogenic effects. This meta-analysis showed Saccharomyces cerevisiae supplementation did not significantly alter methane emissions (CH4), dry matter intake (DMI), or rumen pH in dairy cows, this study provides valuable insights into future dose-dependent studies to address the methanogenic potential of yeast-based products recognizing the urgency of identifying effective mitigation strategies while maintaining productivity. As the cattle industry seeks sustainable solutions, further research should explore alternative strategies and optimize interventions for both productivity and environmental sustainability.