<i>Ascaris suum</i> L3 migratory inhibition activity EC₅₀ values.

Inhibition of migration was assessed in L3 exposed to purified tannins extracted from sainfoin, cocoa beans, pine bark, hazelnut skin, blackcurrant leaves, redcurrant leaves and white clover flowers. ND = not done. NC = not calculated. For all samples except hazelnut skins, the EC50 values are significantly lower for the F2 fraction compared to the F1 fraction (P<0.01 by extra sum-of-squares F-test).