Table 4.
Oocyst per gram (OPG) predicted values obtained from the PROC MIXED analysis in SAS 9.4 for the 5 ages of medicated or vaccinated flocks including 95% confidence intervals and the P-value.
| Age (weeks) | Prevention program | Predicted OPG | Lower limit | Upper limit | P-value |
|---|---|---|---|---|---|
| 1 | Medicated | 10 | 5 | 23 | <0.001 |
| Vaccinated | 816 | 449 | 1,483 | ||
| 2 | Medicated | 166 | 91 | 302 | <0.001 |
| Vaccinated | 13,636 | 8,416 | 22,094 | ||
| 3 | Medicated | 1,305 | 685 | 2,490 | <0.001 |
| Vaccinated | 41,433 | 24,885 | 68,987 | ||
| 4 | Medicated | 5,110 | 28,12 | 9,287 | 0.002 |
| Vaccinated | 22,897 | 14,134 | 37,093 | ||
| 5 | Medicated | 9,962 | 4,513 | 21,989 | 0.0043 |
| Vaccinated | 2,301 | 1,268 | 4,176 |