design: Amplicon sequencing of pooled_mouse_intestinal_contents. Sequencing was performed as described in https://doi.org/10.3389/fmicb.2021.669776. {primers: GGNTGGATGGCNGAYTTYG + GTRTADCCDCCRATRTC, nucleic acid: DNA, flow cell identifier: L9KBK, barcoding: UDB-H12, plate-position: 3 G1, barcodes: GTGGTGGTTTCC + GTGTAGGTGCTT}.