I just picked up a few calves from auction this past weekend. All look very healthy and solid. Their first day to be turned out was Sunday and have access to green forage, hay, minerals/salt, and we also introduced some grain (cracked corn). Today I noticed one of the calves has loose stool that is a dark green in color and has grain in it. No blood or any mucous as far as I can see. Plan to worm tomorrow. Calf is still grazing and acting normal so far.