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Research Article

Table 3

Comparison of the mortality rate of PRMs fed the plasma with higher and lower titres of antibodies against Deg-CPR-1.

Days post-feeding
1 2 3 4 5 6 7
Immunised chickens with high antibody titre (n = 74)
 No. of dead PRMs post-feeding 41 44 49 53 59 63 69
 Mortality (%) 55.41 59.46 66.22 71.62 79.73 85.14 93.24
Immunised chickens with low antibody titre (n = 81)
 No. of dead PRMs post-feeding 25 28 35 38 42 45 52
 Mortality (%) 30.86 34.57 43.21 46.91 51.85 55.56 64.20
Chi-square 9.53 9.63 8.25 9.74 13.24 16.01 19.05
p value <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
Odds ratio 2.78 2.78 2.58 2.86 3.65 4.58 7.70
 95% CI (lower limit) 1.45 1.46 1.35 1.48 1.82 2.17 3.08
 95% CI (upper limit) 5.33 5.29 4.91 5.52 7.34 9.66 19.24

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