I found a dear antler on the golf course this weekend. I tried to clean it real good with hot water and soap etc and gave it to Spiel. It is one half of the full rack, has 4 big points. He loves the thing. I videoed him last night with it. He jumps around it barking at it like it is attacking him. He has spent hours so far chewing on it. When I get time I will post the video, it is pretty funny.
I have given Zeus elk and deer antlers, but just received a Moose antler and button yesterday. He loves them, but they do not seem to be much different than the elk antlers. Zeus does not like the nylabones, but he loves all of the antlers and they last forever.
I thought I read (and someone correct me if I'm wrong) that moose antlers are the hardest and I think that's the only difference. So deer are the softest, then elk, then moose. I haven't tried moose b/c of that reason. Lilly gets really crazy when she chews...I honestly don't understand how she doesn't break her teeth.