No it is not wrong, many people feed cerelac and other human milk replacers products to there puppies. Some times it causes stomach upset as milk contain lactose sugar and dog have problem in digesting the lactose sugar. You can feed dog milk replacer to your puppy which comes for puppies. it have correct amount of nutrients required by puppy for there growth. Please follow the link for milk replacer - https://www.dogspot.in/weaning -food/

Hi SumitYou should give him these type of weaning foods but there are some foods especially made for pups. That is much better than Lactogen because puppy weaning foods like "Samolac" contains ingredients especially prescribed for dogs.