Research progress of rumen hydrogen sulfide production in ruminants

Rumen fermentation can produce hydrogen sulfide (H₂S), and H₂S can be rapidly absorbed by the intestinal wall in nature. If excessive H₂S was produced in rumen, it might be toxic to ruminants. This article reviews the research progress of toxicity of H₂S, rumen H₂S production pathway and its influential factors to lay a foundation for further research and application of rumen H₂S‐producing regulation in ruminant.