seizure

I have a doe who a couple of hours ago started showing symptoms of some kind of neurological problems. I heard a commotion coming from her cage and when I got there she was bucking/convulsing with her eyes clenched tight... I picked her up to examine her and she stopped convulsions, but...

I have a 12 week old bottle calf who appears to be having a seizure. She starts striking out backwards with her back legs, stands aloof, then lays down, and sometimes kicks her legs. We weaned her a few days ago. She is on pasture and hay, and yesterday we introduced purina cattle pellets. We...