Metabolomics combined with 16S rDNA revealed the effects of low protein diet on rumen microbiome structure, nitrogen utilization rate and differential metabolites in feces and urine of dairy cows - Yaqiong Ren; Caijuan Yue; Wenzhuo Wang; Li Cai; Yanming Wang; Xiaojing Liu; Depeng Li; Qiao'’e Zhang (Research in Veterinary Science, 2025)