The fishes were orally supplemented with dietary andrographolide
at various levels showed significant (p < 0.05) difference in nonspecific
immune responses for 14th, 28th and 42nd day of sampling.
The NBT activity (OD at 620 nm) of the experimental groups were
found to be significantly (p < 0.05) different in the treatment groups
when compared with control and observed highest in T2 group on 14,
28 and 42 days of sampling