Table 4.
Immunological indices of chicken blood collected at 16 d of age.
| Factors | LYSOZYME | % PC | PI | NBT: Positive Heterophils | |
|---|---|---|---|---|---|
| VAC | P | (mg L−1) | (109 L−1) | (%) | |
| − | − | 1.33 | 41.3 | 5.09 c | 24.9 |
| + | 1.31 | 43.8 | 5.75 b | 25.3 | |
| + | − | 1.34 | 46.2 | 6.32 a | 40.1 |
| + | 1.29 | 46.5 | 6.44 a | 37.2 | |
| SEM | 0.037 | 0.512 | 0.123 | 1.93 | |
| Significance ( p -value) | |||||
| Effects | VAC | 0.947 | 0.000 | 0.000 | 0.000 |
| P | 0.649 | 0.023 | 0.001 | 0.653 | |
| Interactions | VAC × P | 0.909 | 0.063 | 0.018 | 0.569 |
a–c—mean values within the same column followed by different letters differ significantly at p ≤ 0.05; VAC—anticoccidial vaccine; P—probiotic bacteria; SEM—standard error of mean; % PC—percentage of phagocytic cells; PI—phagocytic index; NBT—nitroblue tetrazolium reduction test.