Fig. 1

PCR products of the V3-V4 region of bacterial 16S rRNA gene with primers 341F/806R. SF sows’ fecal group, AE aerobic group, AN anaerobic group, AE-CRAnaerobic-cryopreserved group, CK control check
PCR products of the V3-V4 region of bacterial 16S rRNA gene with primers 341F/806R. SF sows’ fecal group, AE aerobic group, AN anaerobic group, AE-CRAnaerobic-cryopreserved group, CK control check