title: metagenome+fermentation broth: HM
design: The V3 and V4 regions of the 16S rRNA gene were amplified by PCR. The first PCR amplified the V3-to-V4 region of the 16S rRNA gene using the 341F and 806R primers: 5-CCTACGGGNGGCWGCAG-3 (forward primer) and 5- GGACTACHVGGGTATCTAAT 14 (reverse primer),3, "Activity.Count": 5, "Activity.AggMode": 2, "Activity.Success": t