I picked up 2 young heifers at the sale this Wednesday. Both seemed fine, although a bit underweight. I started them on a 14% calf grower pellet and grass hay. Within 36 hours, one of the heifers developed scours that have not gone away. She's eating and drinking okay. She's the older of the two calves and weighs about 200#, has been weaned for awhile now I assume. Is it possible that a calf who was foraging on poor pasture up until last week would react this way when fed good quality feed free choice? I think she has lice because she's been rubbing her face alot. I do plan to deworm them with pour-on ivermectin this coming week.