Here's a general timeline:
* First few weeks: Puppies rely solely on their mother's milk.
* Around 3-4 weeks: Mother Yorkies start to introduce solid food to their puppies.
* 4-6 weeks: Puppies begin to eat solid food more frequently, gradually weaning from their mother's milk.
* 6-8 weeks: Puppies are fully weaned and can eat solid food independently.
Important Note: This is just a general guideline. The weaning process can vary depending on individual puppies and their mothers. It's essential to consult with a veterinarian to ensure the puppies are getting the proper nutrition and care during this crucial time.