Bibliometric Analysis of Inhibitory Compounds in the Reduction of Enteric Methane in Ruminants: Trends, Advances and Sustainable Perspectives

Resumo

Enteric fermentation is a major agricultural source of methane (CH₄), accounting for about 32% of anthropogenic emissions and contributing significantly to global warming. Research increasingly investigates natural and synthetic inhibitory compounds in ruminant diets to reduce emissions without compromising digestion or productivity. This work presents a bibliometric analysis of studies published between 2005 and 2025, using the Web of Science (WoS) database and 20 keywords in four thematic categories combined with Boolean operators. Of 1,058 publications retrieved, 115 met the co-occurrence criteria. Analysis with VOSViewer® identified five key research areas, including rumen physiology, nutritional strategies, and bioactive compounds, with strong alignment to Sustainable Development Goals (SDGs), particularly Climate Action. Publication trends show marked growth since 2020, underscoring the topic’s rising scientific and societal relevance. The results position methane mitigation in livestock as a research priority, supporting the development of sustainable production pathways.