Table 4.
Effects of supplementing the diets offered to ducks with B. subtilis on growth performance and immune organ index.
| Control | DFM | |
|---|---|---|
| BODY WEIGHT, g/DUCK | ||
| 14 dph | 433.0 ± 33.0 | 448.0 ± 29.7 |
| 28 dph | 836.7 ± 15.3a | 1020.0 ± 18.0b |
| IMMUNE ORGAN INDEX, mg/g | ||
| Spleen (14 dph) | 0.84 ± 0.21a | 1.26 ± 0.049b |
| Thymus (14 dph) | 4.14 ± 0.33a | 6.31 ± 0.69b |
| Bursa of Fabricius (14 dph) | 1.23 ± 0.07a | 2.74 ± 0.41b |
| Spleen (28 dph) | 1.11 ± 0.17 | 0.98 ± 0.09 |
| Thymus (28 dph) | 3.30 ± 0.12 | 3.40 ± 0.11 |
| Bursa of Fabricius (28 dph) | 1.04 ± 0.05a | 1.35 ± 0.17b |
Data were expressed as means ± standard deviations of three replicates (n = 5) per treatment.
a,b
Values with different superscripts in the same row differ significantly (P < 0.05).
Differences were detected with Student's t test.