Landing on a Kent farm strip the Eurofox 912’s pilot noticed that there were sheep on it about two thirds of the way along its length. He continued with the landing because the sheep were moving away from the aircraft noise, and the first part of the runway was clear. As the aircraft touched down, a sheep ran on to the runway, so the pilot started a go-around, and as the aircraft lifted off its left wheel struck the animal and wheel and leg sheared off and were left hanging from the brake hose. The pilot completed a circuit and landing, during which the aircraft slewed to the left and struck a fence. Landing gear, left wing, cowlings, propeller and spinner were damaged. The pilot said that sheep normally ran away from aircraft noise and in future he would be prepared for the unexpected.