At this age, it’s about 150-200ml/kg, so baby should take 600-800ml/day roughly. Of course, different babies have different appetites. What’s important is that if you’re breastfeeding, you still feed on demand, and if you’re bottle feeding, try to hit the minimum required amount. Also look at baby’s growth to ensure baby’s gaining weight, and at least staying within healthy limits (not dropping in terms of centile).
Cherlyn