Here's a breakdown:
* First few weeks: Only mother's milk. This provides all the nutrients, antibodies, and moisture they need.
* Around 3-4 weeks: Puppies may start to show interest in solid food, but they still rely primarily on their mother's milk.
* 4-6 weeks: You can start introducing solid food gradually. This should be a high-quality puppy food, soaked in warm water to make it easier to eat.
* 6-8 weeks: Puppies should be weaning off their mother's milk and transitioning fully to solid food.
Important Note: If the mother dog is unable to provide milk, or if the puppies are orphaned, you'll need to bottle-feed them special puppy formula following instructions from a veterinarian.