Day 1 to 30
If your pup is just born or you have purchased the pup (Which I suggest you shouldn’t at such a small age ). The most important diet is its mother milk and nothing else. For some reason, if mother’s milk is not available. You can go for a milk replacer for puppies. Don’t give them cow and goat milk or any other milk.
From 1 to 3 months-
At this age don’t just start feeding them any commercial food. Instead, feed them cerelac(ROBUST Puppy Cereal, WOW DOG Nutrition Puppy cerelac Starter ) that I have already mentioned above . You also use Nestle celerac which are easily available in stores and online as well. Mix with the lukewarm water or milk replacer and feed your pup 3-4 times a day.
From 3 to 4 months (growing age)-
From this age, slowly start decreasing the cerelac in their diet and start giving them starter puppy food( Pedigree Mother & Baby Puppy Dog Food). You can slightly add water or milk replacer so that the food gets slightly moist which will be easier for them to eat. You can give boiled rice and (1)boiled egg, slightly boiled veggies, or you can give fruits like apple(remove the skin, slightly boiled and also remove seeds from the apple before giving) etc. can also include curd in their diet.
From 5 to 6 months-
Start continuing to include curd or buttermilk, along with that you can also start giving them boiled chicken, boiled eggs(1- 2), boiled veggies, and fruits (apple, banana, water Mellon)you can also give them vegetable soup, rice water, chicken soup, chapati(not more than 1), khichdi, etc.
From 6- 12 months –
From this age, you can start giving normal puppy food instead of starter puppy food. And can continue the same diet 3 times a day just slightly increase the quantity of the food(not to overfeed them). Can give dog biscuits as a snack in small quantities.
From 1- 15 years-
You can start giving adult dog food, you can give boiled chicken, paneer, vegetables, lassi, fruits, chapati or roti(1-2), curd rice, 3-4 boiled eggs, and fish(boneless), etc. Feed them 2 -3 times a day, you can also give dog biscuits or chew sticks but only as a treat (in small quantities). And can add Salmon oil which helps to improve the quality of the hair.