In P. monodon juveniles, therewas 100% mortality in 4 days after
VH challenge in the normal and vehicle control groups, whereas
mortality in the shrimp injected with 0.5 and 1.0 mg g BW1 of
the ethanol extract was significantly lower at 39.6 2.3% and
The difference between
the two extract groups was also statistically significant (P < 0.05)
and remained so until day 14 (72.7 3.3% and 35.1 2.9% mortality
in the 0.5 and 1.0 EtOH groups, respectively).