Table 1.

Primers used in this study.

Primer	Sequence (5′→ 3′)	Reference
*CampyLvl-16S-F	CCT GAM GCA GCA ACG CC	de Boer et al., 2013
*CampyLvl-16S-R	CGG AGT TAG CCG GTG CTT ATT
*CampyLvl-16S-P	CTC CGA AAA GTG TCA TCC T
**CampyYM-16S-F	GGA TGA CAC TTT TCG GAG C	Yamazaki-Matsune et al., 2007
**CampyYM-16S-R	CAT TGT AGC ACG TGT GTC
**C. hyointest-23S-F	ATA ATC TAG GTG AGA ATC CTA G
**C. hyointest-23S-R	GCT TCG CAT AGC TAA CAT
**C. coli-ask-F	GGT ATG ATT TCT ACA AAG CGA G
**C. coli-ask-R	ATA AAA GAC TAT CGT CGC GTG
**C. fetus-cstA-F	GGT AGC CGC AGC TGC TAA GAT
**C. fetus-cstA-R	AGC CAG TAA CGC ATA TTA TAG TAG
**C. lari-glyA-F	TAG AGA GAT AGC AAA AGA GA
**C. lari-glyA-R	TAC ACA TAA TAA TCC CAC CC
**C. jejuni-cj0414-F	CAA ATA AAG TTA GAG GTA GAA TGT
**C. jejuni-cj0414-R	CCA TAA GCA CTA GCT AGC TGA T
**C. upsal-lpxA-F	CGA TGA TGT GCA AAT TGA AGC
**C. upsal-lpxA-R	TTC TAG CCC CTT GCT TGA TG
***IAC-F	CTA ACC TTC GTG ATG AGC AAT CG	Deer et al., 2010
***IAC- R	GAT CAG CTA CGT GAG GTC CTA C
***IAC-P	AGC TAG TCG ATG CAC TCC AGT CCT CCT
27F	AGA GTT TGA TCM TGG CTC AG	Weisburg et al., 1991
1492R	TAC GGY TAC CTT GTT ACG ACT T

*Primers used in qRT- PCR to detect Campylobacter genus, **Primers for multiplex PCR to detect Campylobacter species, ***Primer used as Internal Control template (IAC).