What should I feed a Mini American Shepherd puppy?

A quality puppy formula with an AAFCO growth statement for small-to-medium breeds. Feed three times daily until 12 weeks, then twice daily until 12 months, at amounts that support moderate, steady growth without rapid weight gain.

How do I socialize a MAS puppy?

Introduce the puppy gently and positively to a wide variety of people, environments, sounds, and surfaces during the 3–14 week critical window. Puppy classes provide structured socialization alongside early training. Avoid overwhelming situations; positive, calm introductions are more effective than flooding.

What is the MDR1 mutation and why does it matter for MAS puppies?

MDR1 is a genetic mutation that makes affected dogs unable to pump certain drugs out of the brain, leading to potentially severe or fatal neurological reactions to drugs that are safe for most dogs. Affected breeds include MAS and related herding breeds. Ask your breeder for MDR1 test results and inform your veterinarian so they can choose safe medications.

When can a MAS puppy start agility training?

Foundation work — targeting, flatwork, equipment introduction without jumps — can begin once the puppy has solid basic obedience. Full agility jumping and impact work is typically recommended from 12–15 months onward when growth plates have closed. Discuss timing with your vet.

Miniature American Shepherd Puppy Guide | PetCalculator

MAS puppies are energetic, brilliant, and form deep bonds early. Here's how to give your Mini American Shepherd puppy the right start with nutrition, socialization, exercise, and health care.