When is a Brittany fully grown?

Most Brittanys reach their adult height and approximate weight by 12 months. Full muscular development may continue until 14–16 months, particularly in males. This is typical for medium-sized dogs.

How much should a Brittany puppy weigh at 6 months?

At 6 months, most Brittany puppies are at roughly 60–75% of their adult weight — approximately 8–14 kg (18–30 lb) depending on sex and frame size. Individual variation is normal; use a consistent growth curve rather than a single number as your benchmark.

Should I feed my Brittany puppy large-breed puppy food?

The Brittany is a medium-sized breed, not a large breed, so standard medium-breed puppy food (or an "all life stages" food meeting AAFCO puppy standards) is appropriate. Large-breed puppy formulas are designed for dogs with adult weights over 25 kg and are not necessary for Brittanys.

Brittany Growth Chart: What to Expect | PetCalculator

As a medium-sized sporting breed, the Brittany follows a predictable growth curve, typically reaching adult size between 12 and 14 months. Here's what healthy growth looks like at each stage.