We had an old recip have twins this year, all we can figure is the embroyo split after placement. The cow let both nurse but the next day was loving on one and knocking the heck out of the other. We didn't want to take the chance of her killing the one calf so I have been bottle feeding her. We could have left the calf in with mamma but my thought process was this 10 year old cow just didn't feel she could deal with two or after eight babies just wasn't gonna have any part of taking care of two. And I wasn't willing to risk loseing a nice heifer with those genetics. I don't know if I made the right decision or not but I made the one that seemed right at the time, both heifers are doing good of course the one on mamma is growing better than the bottle baby but the genetic package is still in both, and the bottle baby will catch up eventually.
Gizmom
http://www.gizmoangus.com