On November 22, 1994, about 1600 eastern standard time, a Cessna 152, N67390, registered to Demetrio Bravo, collided with a runway marker during takeoff at Indiantown Airport, Indiantown, Florida, while on a 14 CFR Part 91 instructional flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft received substantial damage and the commercial-rated flight instructor and dual-student were not injured. The flight was originating at the time of the accident. The flight instructor stated that he was demonstrating a soft field takeoff to the student. During the takeoff two deer sized animals appeared on the runway and one proceeded toward the aircraft. He aborted the takeoff and deviated to the right of center line to avoid collision with the animal. He held elevator control to keep the nose wheel off the turf runway and braking action was poor on the rough runway. Maintaining directional control was difficult and the aircraft hydroplaned on the moisture in the ground. The aircraft drifted to the right and collided with an old tire which was used to mark the runway. The tire damaged the aircraft.