The effect of heat stress on the hindgut microbiota and metabolites of Simmental heifers

This study provides one of the first comprehensive characterizations of heat stress-associated alterations in the hindgut microbiota and metabolome of Simmental beef cattle. The findings suggest that heat stress disrupts the hindgut microbial ecosystem by reducing beneficial taxa and increasing potentially harmful bacteria, which may be linked to disturbances in host energy metabolism and physiological homeostasis.