What aspect of the nilgai's physical structure places it in a separate scoring category from cervids for trophy hunters?

Answer

Its horns are true, permanent horns, not branched like antlers.

The nilgai possesses true, permanent horns similar to cattle or goats, which are not branched like the antlers found on cervids.

What aspect of the nilgai's physical structure places it in a separate scoring category from cervids for trophy hunters?
animalmammalclassificationungulateNilgai