Table 5.
Summary of the anti-PRM effects of plasma from chickens immunized with Dg-Ctr1-N-his (Second experiment, adults)
| Days post-feeding | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| Immunized (n = 95) | ||||||||||
| No. of dead PRMs | 1 | 7 | 9 | 10 | 15 | 22 | 26 | 32 | 43 | 55 |
| Survival rate (%) | 98.95 | 92.63 | 90.53 | 89.47 | 84.21 | 76.84 | 72.63 | 66.32 | 54.74 | 42.11 |
| Control (n = 80) | ||||||||||
| No. of dead PRMs | 1 | 9 | 13 | 17 | 21 | 22 | 30 | 33 | 36 | 42 |
| Survival rate (%) | 98.75 | 88.75 | 83.75 | 78.75 | 73.75 | 72.50 | 62.50 | 58.75 | 55.00 | 47.50 |
| P value | 1.000 | 0.436 | 0.252 | 0.059 | 0.095 | 0.600 | 0.193 | 0.347 | 1.000 | 0.542 |
| Odds ratio | 0.84 | 0.63 | 0.54 | 0.44 | 0.53 | 0.80 | 0.63 | 0.72 | 1.01 | 1.24 |
| 95% CI (lower limit) | 0.01 | 0.19 | 0.19 | 0.17 | 0.23 | 0.38 | 0.32 | 0.37 | 0.53 | 0.65 |
| 95% CI (upper limit) | 66.76 | 2.01 | 1.46 | 1.09 | 1.18 | 1.67 | 1.25 | 1.40 | 1.92 | 2.36 |
PRMs were fed on plasma derived from chickens immunized with Dg-Ctr1 of PBS in vitro. After blood feeding for 4 h, adults were collected, and their survival rate was monitored for 10 days. The data were compared by Fisher's extract test between immunized and control groups.