TABLE 2

RFI-associated statistically significant microbial composition differences in the feces of pigs at three geographic locationsa

Time pointPhylumbFamilyGenusLocation(s)cSignificancedDifferencee
Day 70 of ageBacteroidetesS24.7UnculturedNIF, G
ATG
DeferribacteresDeferribacteraceaeMucispirillum schaedleriATP, G
MucispirillumNIF, G
ATG
Day 134 of ageFirmicutesFamily XIIIMogibacteriumNIG
LachnospiraceaeRoseburiaNIG
RuminococcaceaeIncertae sedisROI1G
UnculturedNIG
ErysipelotrichaceaeUnculturedNIG
PlanctomycetesPlanctomycetaceaeROI2F
SHA.109UnculturedUnculturedROI2P, F, G
SpirochaetesSpirochaetaceaeTreponema brennaborenseATG
VerrucomicrobiaROI1P
ROI1P
EuryarchaeotaMethanobacteriaceaeATF
MethanobrevibacterROI1, ROI2G
BS11.gut.groupUnculturedROI2F, G
PrevotellaceaeAlloprevotellaROI2G
BacteroidetesRF16UnculturedROI1F, G
ATG
RikenellaceaeAlistipesROI2G
UnculturedUnculturedROI1F, G
Candidate division TM7Unknown familyCandidatus Saccharimonas”ROI2P, F, G
CyanobacteriaUnculturedUnculturedROI1F, G
FirmicutesDefluviitaleaceaeUnculturedROI1P, F, G
Family XISedimentibacterROI2F, G
Family XIIIUnculturedROI2F, G
LachnospiraceaeLachnospiraROI1G
MarvinbryantiaROI2G
OribacteriumNIG
ROI1G
PseudobutyrivibrioNIG
RuminococcaceaeFaecalibacteriumROI2G
PapillibacterROI2G
RuminococcusNIG
SubdoligranulumROI2G
vadinBB60UnidentifiedROI2F, G
UnculturedUnidentifiedATG
ErysipelotrichaceaeAsteroleplasmaROI2G
Incertae sedisROI1G
VeillonellaceaeAllisonellaROI1G
MitsuokellaROI1G
SelenomonasROI2G
UnculturedROI2G
ROI1, ROI2P
LentisphaeraeRF12 gut group, unculturedUnculturedROI1F, G
Uncultured rumen bacteriumROI1F, G
RF12 gut group, unidentifiedUnculturedROI1F, G
WCHB1.25, unculturedUnculturedROI1F, G
ProteobacteriaNeisseriaceaeLeeiaROI1F, G
SuccinivibrionaceaeUnculturedROI1G
TA18, unculturedUnculturedROI2F, G
DesulfovibrionaceaeDesulfovibrioATF, G
TenericutesRF9, unculturedUnculturedATF, G
VerrucomicrobiaVerrucomicrobiaceaeAkkermansiaROI1P, F, G
  • a A total of 84 RFI-associated microbial composition differences were observed in the feces across the three geographic locations: 9 phyla, 23 families, and 52 genera.

  • b All phylum-level differences between high- and low-RFI pigs are shown in Fig. S2 in the supplemental material.

  • c AT, Austria; NI, Northern Ireland; ROI, Republic of Ireland (batches 1 and 2).

  • d Significantly different (P < 0.05) at the phylum (P), family (F), and/or genus (G) level.

  • e Arrows indicate relative-abundance differences in low-RFI pigs compared to high-RFI pigs at the same geographic location (↓, lower relative abundance; ↑, higher relative abundance).