The pilot reported that the take-off proceeded normally until the point of lift off, when the engine hesitated and lost power for about 3 seconds. Power was then regained, however the pilot was not certain whether full power was developed. He elected to abandon the take-off, but there was insufficient strip length remaining in which to safely stop the aircraft. He then reopened the throttle in an effort to clear a fence at the end of the strip and land in the adjoining paddock. The noseleg struck the fence, and the aircraft then ran through a ditch before coming to rest. The reason for the short term power loss could not be determined
