Just in case you haven't seen what a stifled cow looks like. Old girl is 13 (almost 14). She was lagging but kept with the herd and I wanted her to raise her calf and "be a cow" for as long as possible. Not grinding her teeth or showing signs of pain. Finally shut her (and her calf) in a small section of the barn last weekend and will sell her next week after weaning. It happens. But she's been a great cow and I've kept her heifers, so her lineage carries on.