VPA-0042
QUESTION
Extensive nodule formation in both small and large intestines of the calf is caused by?
OPTIONS
(A) Chabertia ovina
(B) Haemonchus contortus
(C) Oesophagostomum radiatum
(D) Strongyloides papillosus
ANSWER
(C) Oesophagostomum radiatum
EXPLANATION
Oesophagostomum radiatum is the nodular worm of cattle and produces marked nodule formation in the intestinal wall, particularly in the small and large intestines, due to larval development. Chabertia ovina is primarily a sheep parasite, Haemonchus contortus is an abomasal blood feeder, and Strongyloides papillosus is an intestinal nematode with a different lesion pattern.
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