If all else fails you can also consider having a DNA test done. Farmina Natural Delicious Prime Lamb Blueberry Canned Dog Food View On Chewy. Which Is The Best Dog Food For Pitbulls To Gain Muscles Dog Hot Spots Dogs Best Dog Food Therefore if youre looking for a certain size Aussiedoodle you need to communicate with your breeder. . Pitbull vs American Bully Size. They can still continue to gain weight until they are 3 years old however. Richardson who goes on to say that if your pup is having trouble keeping weight on. The weight and height of both breeds are different. Best for Weight Gain. They are many accurate and reliable DNA tests around and you can use them to measure your. If your pit bull is having trouble gaining weight consider adding in canned dog food to their diet. It is common for dogs to reach their final height before their final weight but 3 years to gain weight is less common and usuall...