C310 pilot was surprised by deer on the runway following a night landing.

Narrative

I turned on the runway lights (PCL) prior to the FAF while being vectored for an ILS approach to Runway 17 at Crestview; FL (CEW). I canceled IFR with Eglin Approach Control at the FAF and announced my position and landing intentions on the CTAF/UNICOM frequency. I then executed the approach in VMC conditions. The temperature was 12 degrees C; dew point was 11 degrees C. It had been raining and the runway was damp with partial drying. Touched down in the first 500 FT of the runway. I encountered three deer on the runway approximately 5-10 seconds after touchdown during the rollout. I didn't have time to react with braking or evasive action. The deer bolted out of the way just before an impending impact. The deer weren't visible during the approach or touchdown. I can't think of anything out of the ordinary that a pilot could do to avoid this situation short of doing a low approach and full traffic pattern. This isn't a normal procedure nor is it one I'd recommend as a normal procedure; especially at night. I do recommend that more stringent measures ie; fences; high frequency noise; lights or other measures be taken to discourage and prevent wildlife from entering and loitering in runway environments; especially during nighttime operations. This was an extremely dangerous and scary situation. It was pure luck that it didn't turn into a disaster.