I've had a couple of young calves that that are going around robbing milk from some of my first calf heifers before they calve and stealing their colostrum. I had a few heifers that had uddered up really well and looked like they could calve anytime, but when I looked at them earlier today they looked like they had been sucked out. I wondering whether a heifer or cow that is sucked out is able to reproduce good quality colostrum in a day or two, or if they are sucked out that close to calving if they won't have enough time to produce good quality colostrum and I should thaw out and feed them some frozen colostrum.