Sorry for the delay in seeing your last post Limochick.
Hmmm not exactly sure how much colostrum she would have had but I think it was about 36 hours after birth that she started on formula so was only having colostrum before that every few hours I guess and it wasn't really much at a time, just whatever could be expressed manually (maybe around a teaspoon 5mls or so) and by her couple of sucks. Did give some more colostrum after she started formula but it was a bit all over the place and not really alot, but I guess any colostrum is a start.
Hope that helps and let me know if you have any other questions.