Table 8. Antibody response to Newcastle disease virus (NDV).
| Treatment | Week 4 | Week 8 | Week 12 | Week 16 | Week 20 |
| A (5,000 IU/kg) | 9.80 | 8.25 | 6.33a | 9.25b | 6.80 |
| B (10,000 IU/kg) | 8.80 | 7.60 | 7.00a | 8.00ab | 7.20 |
| C (15,000 IU/kg) | 9.80 | 7.00 | 6.67a | 8.25ab | 7.40 |
| D (20,000 IU/kg) | 9.20 | 6.80 | 8.33bc | 6.75a | 7.20 |
| E (25,000 IU/kg) | 9.40 | 7.20 | 8.75c | 6.60a | 7.60 |
| F (30,000 IU/kg) | 8.80 | 7.40 | 7.33ab | 6.80a | 7.80 |
| G (35,000 IU/kg) | 9.60 | 6.80 | 6.75a | 7.40a | 8.00 |
| SEM | 0.136 | 0.190 | 0.223 | 0.233 | 0.138 |
| p-value | |||||
| (Combined) | 0.195 | 0.478 | 0.003 | 0.012 | 0.282 |
| Linear | 0.143 | 0.660 | 0.002 | 0.142 | 0.975 |
| Quadratic | 0.108 | 0.731 | 0.044 | 0.603 | 0.936 |
a–c
Within a column, values not sharing a common superscript letter are significantly different (P<0.05).