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Larval exsheathment of Haemonchus contortus in the presence of different condensed tannin types (at 300 μg fraction/ml), which were isolated from tilia flowers, goat willow leaves, black currant leaves and red currant leaves, and quercetin or luteolin (30 and 60 μM) and their combinations (CT = condensed tannins; PC = procyanidin tannins; PD = prodelphinidin tannins).
