my daughter is 15 months old her weight is 8.7 years. which milk should I give cow or buffalo and what diet should I give her for weight gain

A. Buffaloes milk would be good you can give it to your child you can go ahead with giving it with dry fruit powder that is going to be good for better weight gain and growth of your child along with that if you want you can also give egg to the child every day that is going to be quite helpful