TABLE 2.
Statistical comparisona of unweighted UniFrac distances between flocks and farm stages
| Body site |
R2 valuec |
|||
|---|---|---|---|---|
| Between brood (F1B vs F2B) | Between grow-out (F1G vs F2G) | Brood (F1B + F2B) versus grow-out (F1G + F2G) | Between flock (brood + grow-out) | |
| Cecum | 0.006 | 0.276b | 0.412b | 0.049 |
| Ileum | 0.026 | 0.148b | 0.403b | 0.023 |
| Nasal cavity | 0.020 | 0.134b | 0.327b | 0.013 |
| Trachea | 0.195b | 0.157 | 0.084b | 0.015 |
a
PERMANOVA coefficient of determination (R2) describing variance explained by the segregation of groups in composition space (see also Fig. S7).
b
Significant difference from PERMANOVA (1,000 iterations, P < 0.05).
c
Brood, 0 to 5 weeks; grow-out, >5 weeks; flock, F1B + F1G and F2B + F2G.