Research advances on susceptibility factors and biomarkers of subacute ruminal acidosis in ruminants

Subacute rumen acidosis (SARA) is a relatively common nutritional, metabolic disease in high-yield ruminants. Although the feeding level corresponds to the feeding management conditions, the risk of SARA in individual animals is high. Therefore, the analysis of the rumen variability mechanism of ruminants and the screening of corresponding biomarkers play an important role in ensuring the efficient production of animals and increasing their useful lifespan. This article mainly explains the causes of SARA and the differences in severity through animal chewing behavior, sorting behavior, and the rumen epithelial absorption capacity. The article also reviews the current research progress on SARA risk markers, in order to identify SARA risks and corresponding mining markers in production.