What happened
The pilot had previously landed in a farmer's field to reload his sprayer tank. Before initiating takeoff, he noticed that some cows had strayed onto the strip. He directed his loadcrew assistant to take his truck and clear the cows from the strip. After the cows were cleared, the assistant parked the truck about 400 to 600 ft from the end of the strip. It was facing perpendicular to the direction of takeoff. As the pilot started his takeoff, a cow ran across the strip from behind the truck. From that point, the pilot was unable to avoid hitting the cow. The right main gear struck the cow and the plane veered to the right and struck the fence.
Findings
The incident involved agricultural operations during the takeoff phase. Contributing factors included the presence of livestock on the runway and the positioning of the support truck, which obscured the view of an approaching animal. The pilot was unable to avoid the collision despite immediate reaction.