Table 3.
Percentage of ELISA positive chicks at hatch by treatment.
| In ovo injection treatments1 | Number of female chicks sampled2 | Number of female chicks testing positive | Percentage positive chicks |
|---|---|---|---|
| NI | 6 | 3 | 50 |
| DI | 6 | 2 | 33 |
| 4.4 × 102 | 6 | 4 | 67 |
| 4.4 × 104 | 6 | 4 | 67 |
| 4.4 × 106 | 6 | 5 | 83 |
| 4.4 × 108 | 6 | 3 | 50 |
1
NI = noninjected control treatment. DI = Marek's disease commercial diluent-injected control treatment. Poulvac vaccine E. coli CFU administered per egg is designated as: 4.4 × 102, 4.4 × 104, 4.4 × 106, and 4.4 × 108.
2
Female chicks were randomly selected from each treatment.