Bullmastiff Puppies

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The Confident and Loyal Bullmastiff

Compared to other dog breeds, the Bullmastiff is relatively new. It didn't originate until the 19th century, when it was formed by English gamekeepers to be used as a watchdog. Due to their past, Bullmastiffs are confident and loyal, and they are very protective of their families.

Bullmastiff At a Glance

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Bullmastiff At a Glance

  • Size: 24"-27", 100-130 lbs.
  • Lifespan: 7-9 years
  • Energy Level: low
  • Coat: Short and dense
  • Shedding: moderate
  • Hypoallergenic: No
  • Dog Group: Working
  • Common Nicknames: Game Keepers Night Dog

Bullmastiff Breed Guide

Learn More About Bullmastiffs

  • Temperament

    Bullmastiffs are confident and loyal guard dogs that form strong family bonds. They are extremely devoted to their families and can become very protective over them. The Bullmastiff is generally even-tempered and isn't easily provoked, but tends to be assertive with other dogs, especially males. Since they were bred to be silent watchdogs, Bullmastiffs don't bark much. They are obedient and enjoy pleasing their owners, but also have a stubborn streak, which is why they're not the best choice for shy or timid owners. They're generally good with children, but should be introduced to them during puppyhood. All in all, the Bullmastiff makes a wonderful companion in a firm, but loving home.

  • Health

    Bullmastiffs are a big boned breed, and may be prone to health issues synonymous with large breeds. Breeders should screen them for conditions like cardiac issues, elbow and hip dysplasia, hypothyroidism, and eye issues.

  • Activity Level

    The Bullmastiff is a docile dog with a fairly low energy level. Unlike other working dogs, Bullmastiffs don't need to always be on the go. Still, while they don't require intense daily exercise, they love romping around in a secure, fenced-in yard.

  • Grooming

    Brushing a Bullmastiff's coat regularly helps ensure it stays healthy and maintains its shine. Diet is also very important to their coat health, and dry skin or extra oily skin can be related to problems in their diet.

  • Shedding

    Bull Mastiffs shed lightly year round, and more heavily during the spring and fall.

  • Appearance

    The Bullmastiff is a large, sturdy dog with broad shoulders and a square, muscular body. Their sleek, dense coats are typically fawn, red, or brindle in color, usually with black accents on the face.

  • History

    Compared to other dog breeds, the Bullmastiff is relatively modern. It originated in the 19th century, formed by English gamekeepers who needed a quiet, yet strong dog who could fend off poachers. The Mastiff and Bulldog were contenders, but Mastiffs were not fast enough, and Bulldogs were not large enough. So, the gamekeepers breeded the two, and the "Gamekeeper's Night Dog," or Bullmastiff, was born. These dogs were bred for their demeanor and utility, and were very effective at guarding gamekeepers' estates from poachers. After poaching declined, the Bullmastiff transitioned into more of a guard dog, and was still considered a crossbreed. At the beginning of the 20th century, the Bullmastiff transitioned into a breed of its own rather than a hybrid and was recognized by the United Kennel Club (UKC) in 1924. The American Kennel Club (AKC) followed suit and recognized the breed in 1933.