We haven't had the best luck with bottle babies on Universal Milk replacer, and whole milk from the store is so expensive. This year, before we even had any kids, we were at Rural King and saw a bag of calf milk replacer that was torn. They guy gave it to us for half price, so a 50lb bag only cost $35.00! We were thrilled, and very hopeful. Well, the twins are just now 4 weeks old, and they are bigger than the ones one their Moms! These are absolutely the best looking bottle babies we have ever had.