TABLE 5.
Abundance of bacterial 16S rDNA sequences (n = 610) isolated from the ileal floras of broiler chickens
| Group | Class | Genus or species | Abundance of sequence (no. of sequences [%]) at day:
|
|||||
|---|---|---|---|---|---|---|---|---|
| 3 | 7 | 14 | 21 | 28 | 49 | |||
| Low G+C, gram positive | Lactobacillaceae | Lactobacillus spp. | 1 (1.05) | 2 (2.22) | 1 (0.88) | 4 (4.04) | ||
| L. acidophilus | 7 (7.37) | 54 (58.9) | 54 (52.9) | 57 (50) | 3 (2.72) | |||
| L. crispatus | 4 (4.21) | 1 (1.11) | 8 (7.84) | 3 (2.63) | 82 (74.5) | 36 (36.4) | ||
| L. reuteri | 3 (2.94) | 5 (4.39) | 8 (7.27) | 1 (1.01) | ||||
| L. delbrueckii | 40 (42.1) | 1 (1.11) | ||||||
| Weisella spp. | 6 (6.32) | |||||||
| L. salivarius | 6 (5.26) | 2 (1.82) | 28 (28.3) | |||||
| L. gasseri | 3 (2.63) | |||||||
| Clostridiaceae | Clostridium spp. | 1 (1.05) | 1 (1.11) | 7 (6.86) | 9 (7.89) | 7 (6.36) | 19 (19.2) | |
| C. perfringens | 15 (15.8) | |||||||
| Ruminococcus | 3 (2.63) | |||||||
| Eubacterium spp. | 5 (4.39) | |||||||
| Bacillus spp. | 4 (4.04) | |||||||
| Staphylococcaceae | Staphylococcus | 2 (2.11) | 3 (2.63) | |||||
| Streptococcaceae | Streptococcus | 2 (2.11) | 16 (17.78) | 17 (16.67) | 3 (2.63) | 1 (0.91) | ||
| Enterococcaceae | Enterococcus | 3 (3.16) | 14 (15.56) | 13 (12.75) | 3 (2.63) | 3 (2.72) | 2 (2.02) | |
| High G+C, gram positive | Fusobacteriaceae | Fusobacterium prausnitzii | 5 (4.39) | |||||
| Bifidobacteriaceae | Bifidobacterium spp. | 1 (1.11) | ||||||
| Proteobacteria (gram negative) | α | Ochrobacterium | 1 (1.05) | |||||
| β | Alcaligenes | 4 (4.21) | ||||||
| A. faecalis | 1 (1.05) | |||||||
| ɛ | Campylobacter | 5 (5.26) | ||||||
| γ | E. coli | 2 (2.11) | ||||||
| Cytophaga/Flexibacter/Bacteroides | Bacteroidaceae | Bacteroides spp. | 3 (2.63) | 1 (1.01) | ||||
| Unknown bacteria | 2 (2.11) | 5 (4.39) | 4 (3.60) | 4 (4.04) | ||||
| Total | 95 | 90 | 102 | 114 | 110 | 99 | ||