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Table 3 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

Sample/location

T-RF presence/absence

T-RF relative abundance

AS700

Control

AS700

Control

Digesta

    

  Central jejunum

0.237

0.540

0.571

0.150

Ileum

0.718

0.140

0.588

0.169

  Cecum

0.502

0.627

0.541

0.158

  Descending colon

0.419

0.602

0.578

0.127

Mucosa

    

  Duodenum

0.667

0.745

0.544

0.166

  Proximal jejunum

0.852

0.269

0.335

0.030*

  Central jejunum

0.872

0.062

0.919

0.009**

  Distal jejunum

0.922

0.742

0.738

0.879

  Ileum

0.324

0.409

0.321

0.066

  Cecum

0.881

0.281

0.918

0.001**

  Spiral colon

0.047*

0.462

0.468

0.062

  Descending colon

0.959

0.167

0.954

0.350

  Rectum

0.810

0.115

0.742

0.347

  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 the AS700 and control treatments by sample type/location for each of T-RF presence/absence and T-RF relative abundance (i.e. AS700 compared to control and visa-versa).
  3. **Highly significant difference (P ≤ 0.01) between the AS700 and control treatments by sample type / location.
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Gut Pathogens

ISSN: 1757-4749