I was lucky or unlucky and happened to be on top of it. I would say 18 hours went before i could tell she rejected it (was able to give it a colostrum solution at about that time). She (cow) was playing a game and she called it but this was after beating it away for an hour . When i pinned them up the calf would try to suck but she would butt it hard and kick against the rail numerous times. I let her out and she never looked back. I heard if she had twins she would do this and no she is not a heifer. Its to late to chute her and let the calf suck but i have fed the calf four quarts of colostrum in a 8 hour period (after 18 hours went by) 1 quart forced. I also forced 2 quarts of well water down (no electrolyts) it because its showing death signes (dehydration) . I think i missed the boat on this one. What do you guys think?