I'm new to the boards, and motherhood, and have heard some very good guidelines that I haven't read on this thread yet. My MIL is a cRN working in post-partum mother/baby care (how lucky could I get!) and she says the amount guidelines are 2-3oz per pound of weight for total daily intake.
Also, my current question is how to know when to move up to a faster nipple? My Amelia is still using slow flow nipples and doesn't seem to get frustrated, but sometimes she'll take only 3 oz and then sometimes it can be 6oz. As you can see, this can cause a lot of wasted formula. She can be sucking away on her bottle for 45 mins sometimes and still only take 3oz. Once in while I've noticed the hole getting plugged by a small clump, so I've gotten in the habit of checking for swallowing if it's not going down fast enough; but even when she seems to be swallowing right along, she doesn't always eat as much.
Personal info, just in case you want it: Amelia is 7 1/2 weeks old and I've been trying for the past week to get her on EASY while being back to work and having my mom (who raised 3 kids without fancy methods thank-you-very-much) watch her during the day, none of which has helped. Fortunately, Amelia is an Angel/Textbook baby so she's been really easy to get right back on "schedule" when she's with me.