Comparative analysis of rumen metagenomes with dietary supplementation of 3-nitrooxypropanol revealed divergent modes of action in hydrogen metabolism and reductant pathways between beef and dairy cattle. - Choi Y; Zhou M; Oba M; Romero-Pérez A; Beauchemin KA; Duval S; Kindermann M; Guan LL (Microbiome, 2026)