Table 4.
Effect of age on the relative weight of the immune organs of broilers (1–10 days).
| Days | Immune Organs (%) | ||
|---|---|---|---|
| Thymus | Bursa of Fabricius | Spleen | |
| 1 | 0.09 e | 0.12 b | 0.035 c |
| 2 | 0.18 d | 0.16 a | 0.028 c |
| 3 | 0.18 d | 0.12 b | 0.026 c |
| 4 | 0.20 cd | 0.15 ab | 0.086 b |
| 5 | 0.22 bcd | 0.16 a | 0.038 c |
| 6 | 0.24 bc | 0.16 a | 0.094 ab |
| 7 | 0.26 b | 0.17 a | 0.113 ab |
| 8 | 0.27 b | 0.17 a | 0.111 ab |
| 9 | 0.31 a | 0.17 a | 0.124 a |
| 10 | 0.25 b | 0.18 a | 0.109 ab |
| SEM± | 0.016 | 0.010 | 0.011 |
| p value | <0.001 | 0.003 | <0.001 |
abcde Means with different letters in the same column differ from p ≤ 0.05. n = 20. SEM: Standard error of the mean.