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Table 2 Group significance pairwise comparisons of T-RFLP bacterial community fingerprints associated with mucosa or within digesta between beef cattle administered (AS700) or not administered antimicrobial growth promoters (Control) a

From: Effect of antimicrobial growth promoter administration on the intestinal microbiota of beef cattle

Treatment/location T-RF presence/absence T-RF relative abundance
Mucosa Digesta Mucosa Digesta
Treatments combined     
  Small intestine 0.001** 0.001** 0.001** 0.001**
  Large intestine 0.001** 0.001** 0.001** 0.001**
  All samples 0.001** 0.001** 0.001** 0.001**
AS700     
  Central jejunum 0.504 0.002** 0.001** 0.001**
  Ileum 0.484 0.002** 0.028* 0.036*
  Cecum 0.707 0.006** 0.571 0.007**
  Descending colon 0.780 0.013* 0.002** 0.001**
Control     
  Central jejunum 0.363 0.144 0.001** 0.001**
  Ileum 0.100 0.087 0.001** 0.001**
  Cecum 0.433 0.040* 0.001** 0.001**
  Descending colon 0.225 0.064 0.001** 0.001**
  1. a All samples consisted of five replicate animals per treatment, with the exception of digesta from the central jejunum of treatment cattle (n = 3), from the ileum of control and AS700 treatment cattle (n = 3), and from the cecum and descending colon of AS700 treated cattle (n = 4). The two p-values presented per comparison reflect inter-group variability.
  2. *Significant difference (P ≤ 0.05 and P > 0.01) between mucosa and digesta by treatment/location for each of T-RF presence and T-RF relative abundance (i.e. mucosa compared to digesta and visa-versa).
  3. **Highly significant difference (P ≤ 0.01) between mucosa and digesta.