Can I give my newborn cow milk or buffalo milk instead of breast milk?

No, animal milk is not suitable for babies, especially in the first year of life. While animal milk is great for grown-ups, it is too harsh for delicate baby tummies. The overall level of protein is much higher than what a baby needs, the protein type is harder to digest, and the nutrient balance — with very little iron and more sodium and potassium — is not right for human babies.