TABLE 2.
Prevalence of abundant bacterial genera along the GIT of 3-week-old calves
| Genus | Prevalence (%)a in: |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Rumen |
Jejunum |
Ileum |
Cecum |
Colon |
||||||
| Tissue | Digesta | Tissue | Digesta | Tissue | Digesta | Tissue | Digesta | Tissue | Digesta | |
| Prevotella | 9.9 ± 0.8 | 15.1 ± 0.4 | 10.8 ± 6.8 | 0.5 ± 0.2 | 10.8 ± 2.2 | 0.2 ± 0.1 | 18.4 ± 4.6 | 16.9 ± 0.8 | 16.9 ± 2.2 | 21.6 ± 1.4 |
| Bacteroides | 29.0 ± 19.6 | 15.2 ± 0.7 | 0.01 ± 0.002 | ND | ND | ND | 5.5 ± 0.3 | 10.4 ± 0.3 | 10.4 ± 0.4 | 15.3 ± 1.0 |
| Lactobacillus | 0.1 ± 0.04 | 5.9 ± 0.3 | 5.5 ± 0.6 | 2.1 ± 0.1 | 6.4 ± 2.8 | 45.7 ± 2.9 | 0.02 ± 0.01 | 0.03 ± 0.3 | 0.03 ± 0.02 | 3.0 ± 0.5 |
| Faecalibacterium | 0.2 ± 0.03 | 0.2 ± 0.1 | ND | ND | ND | ND | 9.8 ± 0.6 | 14.2 ± 0.6 | 14.2 ± 0.5 | 10.3 ± 0.3 |
| Clostridium cluster XIV | 6.7 ± 6.2 | 1.3 ± 0.6 | 0.2 ± 0.1 | 0.5 ± 0.3 | 0.2 ± 0.1 | 1.0 ± 0.4 | 0.7 ± 0.3 | 0.9 ± 0.6 | 0.9 ± 0.1 | 1.6 ± 0.1 |
a
Prevalence = (16S rRNA gene copy number of each genus/total bacterial 16S rRNA gene copy number) × 100. Prevotella, PG*S = 0.02; Bacteroides, PG = 0.01; Lactobacillus, PG*S < 0.01; Faecalibacterium, PG*S < 0.01 (G, gut region; S, sample type [tissue versus digesta]). ND, not detected (represents a prevalence of <0.001%).