All About Bullmastiff

Bull Mastiff Sign

All About Bullmastiff



This is a robust, medium-sized, well-balanced dog. There is a large variation in breed size and they range in weight from between thirty-five to seventy-five pounds and stand anywhere from seventeen to twenty-three inches at the withers. Their height is slightly shorter than their length, with front legs straight and strong. Some of the eight main Australian shepherd colors include:


Description of a Bullmastiff

The bullmastiff is a large, strong, powerfully built dog with square proportions. Its muscular shoulders slope slightly, while its front legs have a good, straight bone structure and hindquarters have muscular, broad thighs. Bullmastiff’s range from twenty-five to twenty-seven inches in height and they weight from one hundred to over one hundred and thirty pounds. The bullmastiff’s head is wrinkled and broad with a dark, square, short muzzle, black nose and large nostrils. Their medium sized, dark hazel eyes have an intelligent, alert expression. Bullmastiffs coats are slightly rough, short, and the colors are red, fawn, or brindle. Some have black markings on their heads.

Temperament of a Bullmastiff

Gentle and quiet, the bullmastiff makes an excellent guardian and a wonderful, devoted, loving family companion that usually get along with other family pets. They get along well with older children but bullmastiffs are not very playful dogs. Bullmastiffs need socialization and training in obedience from an early age. Restrained with strangers, intruders could find themselves knocked or pinned to the ground by a bullmastiff. A quiet dog that rarely barks and sensitive to a person’s tone of voice, it does require a lot of human companionship, attention and does poorly in a kennel.

Grooming & Shedding of a Bullmastiff

Bullmastiff shed very little and their coat care is minimal. Brush their slightly rough, shorthaired coat occasionally using a firm bristle brush. Remove dead hairs by using a rubber brush or rub the bullmastiff down with a massage glove. Keep the bullmastiffs nails trimmed on a regular basis and keep them short. Bullmastiffs carry a huge amount of weight because they are such a heavy, large dog so keep their feet checked regularity.

History of the Bullmastiff

Originating in England, they obtained the bullmastiff by crossing forty percent bulldogs with sixty percent mastiffs. Records dating as far back as 1795 mention these mastiff bulldog types. It was not until around 1924 that they began judging bullmastiffs. The English Kennel Club recognized them as a pure breed followed by the American Kennel Club in 1933. Before anyone could register a bullmastiff as a purebred, they required three generations of breeding first. Gamekeepers used these threatening, fierce bullmastiffs to protect large estates and to hunt down game poachers by tackling and holding their human prey without biting. Dark brindle coats made the bullmastiff almost invisible at night.

Health Issues with a Bullmastiff

  • Major Concerns: canine hip dysplasia, gastric torsion, elbow dysplasia, cancers
  • Minor Concerns: entropion
  • Occasionally seen: PRA (progressive retinal atrophy)
  • Suggested tests: hip, eye, elbow

Characteristics of the Bullmastiff

Height Males 25-27 inches (63-69cm)
Malees 24-26 inches (61-66cm)
Weight Dogs 110-133 pounds (50-60kg)
Bitches 100-120 pounds (45-54kg)
Lifespan 8-10 years
Exercise Medium
Apartment Yes – with regular exercise
Families Yes
Young Children No – but can with proper training
Need exercise space Yes

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