VPA-0073
QUESTION
The nematode egg transmits “black head disease” in turkeys?
OPTIONS
(A) Ascaridia galli
(B) Gongylonema ingluvicola
(C) Heterakis gallinarum
(D) Syngamus trachea
ANSWER
(C) Heterakis gallinarum
EXPLANATION
Heterakis gallinarum transmits blackhead disease indirectly because its eggs can contain the cecal worm larvae and serve as a vehicle for Histomonas meleagridis. Ascaridia, Gongylonema, and Syngamus eggs do not characteristically transmit blackhead disease.
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