Behavior of Untethered Horses during Vehicle Transport

To determine the reasonable direction for loading horses during transportation, we loaded 12 yearling Thoroughbred horses in pairs into a horse-carrying vehicle, and without tethering them, drove with either minimal acceleration and deceleration (normal travel group) or repeated sudden stops (abrupt stop travel group). As we investigated how these horses behaved and postured inside the vehicle throughout repeating trials, we observed the following: 1) While the vehicle was on the road, the horses exhibited significantly less feeding behavior (P