Anthelmintic Effect of Bacillus thuringiensis Strains against the Gill Fish Trematode Centrocestus formosanus

Figure 6

Lethal effects in Centrocestus formosanus metacercariae. (a) Control group (stained with blue trypan 0.4%, 2x Motic BA200); (b) control group, released metacercariae (10x Motic SMZ-168); (c) GP308 strain 50 µg/mL total protein: (1) front and (2) back of released cyst metacercariae with detritus (arrows, 10x Motic SMZ-168); (d) GP526 strain 50 µg/mL total protein: (1) encysted metacercariae and (2) metacercariae cyst released by the action of the total protein (arrows, 4x Motic SMZ-168); (e) IB-16 strain 50 µg/mL total protein, metacercariae cyst released by the action of the total protein (arrows, 4x Motic SMZ-168); (f) ME1 strain 50 µg/mL total protein: (1) encysted metacercariae and (2) metacercariae cyst released by the action of the total protein (arrows, 4x Motic SMZ-168).

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