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Table 1 16S rRNA gene copy numbers of bacterial groups by qPCR in reactors during periods 2-4

From: Synergistic effects of Bifidobacterium thermophilum RBL67 and selected prebiotics on inhibition of Salmonella colonization in the swine proximal colon PolyFermS model

  Bacterial group, log10copies/mL effluent
Treatment Bifidobacterium thermophilum Bifidobacteriumspp. Bacteroides-Prevotella Enterobacteriaceae Lactobacillus/Leuconostoc/Pediococcusspp. ClostridiumCluster IV total 16S rRNA genes
PERIOD 2        
Control n.d. 6.4±0.2 10.3±0.1 9.6±0.1 7.6±0.1 10.0±0.1 10.5±0.1
N-15 n.d. 6.5±0.2 10.3±0.03 9.6±0.1 8.2±0.3* 10.1±0.1 10.5±0.2
RBL67 7.6±0.1 8.3±0.2* 10.2±0.1 10.0±0.1* 7.6±0.2 10.0±0.1 10.6±0.2
FOS n.d. 6.0±0.2* 10.4±0.04 9.9±0.2* 7.4±0.1 10.0±0.03 10.7±0.1
R-FOS 8.1±0.1 8.7±0.2* 10.2±0.2 9.9±0.2 7.4±0.2* 10.0±0.1 10.7±0.1
PERIOD 3        
Control n.d. 6.7±0.1 10.0±0.03 10.0±0.1 8.2±0.3 10.0±0.02 10.6±0.1
N-15 n.d. 6.9±0.2 10.1±0.2 9.8±0.1* 8.2±0.2 10.1±0.2 10.6±0.2
RBL67 7.7±0.1 7.7±0.1* 10.1±0.2 10.2±0.1* 8.6±0.2 10.1±0.1 10.6±0.2
GOS n.d. 6.6±0.04 9.9±0.2 9.7±0.2* 8.1±0.2 10.0±0.5 10.5±0.1*
R-GOS 7.7±0.1 8.0±0.1* 10.0±0.2 9.9±0.2 8.3±0.3 10.1±0.3 10.5±0.2
PERIOD 4        
Control n.d. 6.4±0.1 10.0±0.2 10.0±0.2 8.0±0.2 9.5±0.02 10.6±0.3
N-15 n.d. 7.0±0.1* 9.9±0.1 9.8±0.1 8.1±0.3 9.8±0.1 10.5±0.1
R-MOS 7.6±0.1 8.1±0.1* 9.8±0.3 9.8±0.2 8.2±0.4 9.5±0.3 10.5±0.4
R-FOS 8.0±0.1 8.4±0.1* 9.8±0.1 9.9±0.2 8.4±0.2* 9.7±0.1 10.5±0.1
R-GOS 7.8±0.1 8.3±0.03* 9.9±0.1 10.0±0.2 8.3±0.2 9.8±0.2 10.6±0.3
  1. *Bacterial populations significantly different (P?<?0.05) from CR within a period; Values are given as means±SD (log10 copy numbers/mL reactor effluent) calculated from three consecutive days (days 24) during N-15 challenge periods.
  2. N-15: Salmonella N-15 without pro- or prebiotic; RBL67: B. thermophilum RBL67 alone; FOS: FOS alone; R-FOS: B. thermophilum RBL67 + FOS; GOS: GOS alone; R-GOS: B. thermophilum RBL67 + GOS; R-MOS: B. thermophilum RBL67 + MOS.