Table 6.
Effect of different dietary treatment on the levels of humoral immune antibody titer against Newcastle and infectious bursal vaccine in broiler
| Diets | ND titer | IBD titer | |||
|---|---|---|---|---|---|
| Primary titer | Secondary titer | Primary titer | Secondary titer | ||
| CON | 5.25 | 4.50b | 9.92 | 8.59c | |
| VM | 5.50 | 5.50ab | 10.00 | 9.09abc | |
| SS | 5.25 | 5.75a | 10.61 | 9.09abc | |
| B1 | 5.25 | 5.25ab | 9.92 | 9.10abc | |
| B2 | 5.00 | 6.00a | 10.36 | 9.82a | |
| S1 | 5.50 | 5.50ab | 9.84 | 8.59c | |
| S2 | 5.25 | 5.75a | 10.34 | 9.64ab | |
| B1+S1 | 4.75 | 6.00a | 10.28 | 9.83a | |
| SEM | 0.490 | 0.373 | 0.300 | 0.311 | |
| P-value | 0.3102 | 0.0021 | 0.2111 | 0.001 | |
a, b Means within same column with different superscripts differ significantly (P<0.05), the number of observations n=48 in each group. CON: Control diet, VM: 0.2 g/kg virginiamycin, SS: Symbiotic, B1: 1 and B2: 2 g/kg barberry powdered seeds, S1: 1 and S2: 2 g/kg sumac powdered seeds, and B1+S1: Mixture of barberry 1 g/kg + sumac 1 g/kg. ND: Newcastle disease, and IBD: Infectious bursal disease