I listened to a NH F&G guy talk about new rules for moose hunting (again this is for NH ). Hunter could bring a non-permitted person along with him to help, either drive animal into a path or for hauling out of the woods, and if was the deep woods you were allowed to just bring the forequarters.
if it was a cow moose they ask that you bring the ovaries so they can record her age and number of times she had calved. (Guy in the back of the room shouted, “How do you know, it’s all guts?”)
rules have probably changed since then.