Hit the gas...not the brake, and carry a skinning knife with you....
Couple years ago I did a little informal study on motorcycle/deer collisions using YouTube as reference material. What I found was if the bike was 600CC or smaller, or if the rider tried to avoid the deer, the rider was toast. If the bike was bigger than 600CC AND the rider rode straight at the deer, the deer would split, and the rider could stop in a controlled manner.
Front end of the bike was still toast, but no hospital bills.
Should mount a splitter bar for additional safety.