I put my daughter onto normally cow's milk at 9months old.Did most 1/4 milk and 3/4 water at the start so not to strong and as she got older gradually made all water.She didnt like formaula at all,was breast feed.I no they say not to give cow's milk to them but my mum and mother in law gave all there children cow's milk at 6months and we all turned out ok.My daughter still loves milk today and she is 5 this year,she still has at leat 3glasses a day.
It worked for me,so might work for you.
Andrea...