Table 1 Percent protection in control and treated broiler birds after virulent ND virus challenge
Treatment group | No. of birds challenged | No. of birds died | No. of birds protected | Protection (%) |
|---|---|---|---|---|
Group A (15 mg/kg feed ) | 4 | 2 | 2 | 50 |
Group B (30 mg/kg feed ) | 4 | 1 | 3 | 75 |
Group C (control diet) | 4 | 4 | 0 | 0 |