For most facilities, using a phantom is the preferred method of collecting semen from a stallion, as it is an efficient, organized and generally a safe process that mimics the natural position during live breeding. Ground semen collection (see video below) is an alternative option to the typical collection of a stallion on a phantom or mount mare. This article describes ground semen collection, primarily summarizing previously published clinical and research reports of Sue McDonnell and colleagues at the University of Pennsylvania and Jim Crump of Roanoke AI.