How much we should feed a cow which is milking

A milking cow needs steady fodder and concentrate. As a general practice, give green fodder freely, dry straw about four to eight kilogram, concentrate about two to eight kilogram depending on milk yield, plus mineral mixture one hundred to two hundred gram and clean water fifty to one hundred liter daily. Feed in two or three fixed times. If you tell me her milk yield, I can guide the ration more closely.