PSI for cattle and horses Tuesday Aug 3rd, 2021 Northern California rancher William Simpson explains how the distribution of body weight affects plant growth. It provides the logic behind his plan to move wild horses out of areas where they are not wanted into mountainous areas that have been decimated by wild fires in recent years. A minority of Americans want to see American wild horses sent to slaughter to make room for more livestock grazing on public lands. Obviously, we don't see most Americans giving up their hamburgers and steaks, so the demands for beef, lamb and pork are slowly increasing. But do we need to kill wild horses in slaughter houses? And is this even a wise use of these publicly-owned wild horses?