The appearance
of metacercariae was consistent with fermented fish morphology.
The percentage of degenerated metacercariae increased from 0%
(uncooked control) to 5.67%, 7.04%, 27.5%, 79% and 93.75% on days
1, 2, 3, 4 and 5, respectively, and reached 100% on days 6 and 7 of
fermentation.