Cow milk to 5 months old baby. A day?

According to many prominent Paediatric academic bodies around the world introduction of Animal milk is acceptable beyond 1 year age Cows milk particularly is associated with cows milk protein allergy which can cause bleeding also in stools As such animal milk contains more phosphorus which can lower calcium in the baby Hence humanized formula milk is recommended There are days many in market and the latest product of any brand is good and depending on your financial situation you may opt one of them While most come with a stage 1 label for below 6 months and stage 2 label for 6-12 months As hydronephrosis is bilateral reported you should be under follow up of a paediatric urologist and Nephrologist If there is something like posterior urethral valve it needs treatment

Update me in case of any further doubts Always welcome