My lo has always taken as much in the DF as he does for all his other feeds. It started out at 4-5oz, and now he takes 6-8oz! I upped it to 8oz just the other day when he started waking earlier for his night feed...
If he starts to get squirmy while he's eating, and there are only a few oz's left, I'll take the bottle out presuming he doesn't want any more....
My lo has never spit up or anything after a DF, if that's what you're worried about. There are a few times he has either woken, or been awake when I come in for the DF, if that's the case, I'll pick him up to see if he needs to burp, but then will put him right back down.
HTH! Lindsay
