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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.