Table 2.

Primers used in the present study.

Item	Primers (5’→3′)	Reference
Total bacteria	fwd CGGYCCAGACTCCTACGGG rev TTACCGCGGCTGCTGGCA	Xu et al. (2017)
Firmicutes	FwdGGAGYATGTGGTTTAATTCGAAGCA rev AGCTGACGACAACCATGCAC	Xu et al. (2017)
Bacteroidetes	fwd GGARCATGTGGTTTAATTCGATGAT rev AGCTGACGACAACCATGCAG	Xu et al. (2017)
Bacteroides	fwd GAGAGGAAGGTCCCCCAC rev CGCTACTTGGCTGGTTCAG	Vasaï et al. (2014a)
Butyryl-CoA acetate-CoA transferase	fwd AAGGATCTCGGIRTICAYWSIGARATG rev GAGGTCGTCICKRAAITYIGGRTGNGC	Xu et al. (2017)
Butyrate kinase	fwd TGCTGTWGTTGGWAGAGGYGGA rev GCAACIGCYTTTTGATTTAATGCATGG	Xu et al. (2017)