Table 4.
Effect of Bacillus-based feed additive on the concentration of fecal ammonia gas emission in growing-finishing pigs
| Item (ppm) | CON1 | T11 | SE | p-value |
|---|---|---|---|---|
| 6 wk | ||||
| 1 d | 23.2 | 20.9 | 1.3 | 0.26 |
| 3 d | 32 | 28.1 | 1.4 | 0.11 |
| 5 d | 37.2a | 32.4b | 0.9 | 0.01 |
| 7 d | 43.0a | 37.9b | 1.2 | 0.02 |
| 15 wk | ||||
| 1 d | 24.5 | 19.9 | 1.6 | 0.09 |
| 3 d | 30.5a | 24.9b | 1.3 | 0.03 |
| 5 d | 41.2a | 33.0b | 1.2 | 0.004 |
| 7 d | 46.2a | 37.9b | 1.9 | 0.03 |
SE, standard error (pooled).
1
CON, basal diet; T1, basal diet+62.5 ppm microbial feed additive.
a,b
Means in the same row with different superscripts differ significantly (p<0.05).