Male, or bull, moose grow their antlers each year through the spring and summer. Female moose, called cows, don’t grow antlers. But males’ impressive headgear is made of bone that is an extension of the skull. When they first form, antlers are covered with a layer of skin called velvet, which nourishes the bone as it grows. When finished, the velvet sheds off, a process that the moose often accelerate by rubbing on trees.
According to wikipedia all deer antler are bones, other animals like cows, sheep and goats are keratin. Every day is a school day.
Our dog has antler to chew, they last much longer than other chews or bones. Unfotunately the latest one was particularly big and was damaging the floor when he dropped it so I stuck it through the bandsaw. Worked fine, no obvious change to the blade.
All antler is most certainly bone. Amazing to thing that they cast them annually and then regrow them in the space of a couple of months. The next time you see a picture of a gert red stag just think that that bone weighs more than the bone in your legs and it took him two or three months to grow it.
I have provided antler in velvet for stem cell research in the past.
Horn is Keratin, most horned animals don't shed their horns, the only exception I am aware of is the pronghorned antelope. But I don't deal with many horned animals so happy to be corrected on that.
I have cut heaps of antler on a bandsaw. Making beads and keyings and coat hangers etc etc etc. It does smell if it get hot but you get used to it.
As it's round, and inevitably not straight just make sure that you have the antler well secured and braced against the table, the same as you might if you were processing logs or resawing or whatever. Basic bandsaw safety type stuff.
I can tell you from experience if you have been up since 02:30 and decide that afternoon is a good time to sleepily saw up some antler you soon. wake up when you get that sickening bang as the saw grabs the piece you haven't fed correctly. Luckily for me it just bent the blade and didn't remove any of my digits.