Table-4.

Antibody immunoglobulin G levels in broilers before Newcastle disease virus experimental infection.

Age of broilers	No. of samples	Mean of Ab	GMT	Standard deviation	Standard error of mean	CV%
Maternal Ab at 3 days	18	7815.44a	7731	1179.75	278.07	10.35
At 18 days	18	2080.55b	1944	721.02	169.94	24.55
At 25 days	18	504.33c	146	392.75	92.57	25.85
Sig.		**
p-value		1E-9

Ab=Antibodies, GMT=Geometric mean, %CV=Coefficient of variation,

^**refer to highly significant effects in analysis of variance. Means have different letters refer to significant differences at p≤0.05