Bull mastiff

Bullmastiff

Origin	United Kingdom
Traits Weight Male 110–130 lb (50–59 kg) Female 90–120 lb (41–54 kg) Height Male 25–27 in (64–69 cm) Female 24–26 in (61–66 cm) Coat Short and weather resistant Color Any shade of brindle red fawn Life span 8-10 years
Classification / standards FCI Group 2, Section 2.1 Molossian: Mastiff type #157 standard AKC Working standard ANKC Group 6 (Utility) standard CKC Group 3 - Working Dogs standard KC (UK) Working standard NZKC Utility standard UKC Guardian Dog standard
Domestic dog (Canis lupus familiaris)

Traits
Weight	Male	110–130 lb (50–59 kg)
	Female	90–120 lb (41–54 kg)
Height	Male	25–27 in (64–69 cm)
	Female	24–26 in (61–66 cm)
Coat	Short and weather resistant
Color	Any shade of brindle red fawn
Life span	8-10 years

Classification / standards
FCI	Group 2, Section 2.1 Molossian: Mastiff type #157	standard
AKC	Working	standard
ANKC	Group 6 (Utility)	standard
CKC	Group 3 - Working Dogs	standard
KC (UK)	Working	standard
NZKC	Utility	standard
UKC	Guardian Dog	standard

The Bullmastiff is a large-sized breed of domestic dog, with a solid build and a short muzzle. The Bullmastiff shares the characteristics of molosser dogs, and was originally developed by 19th-century gamekeepers to guard estates. The breed's bloodlines are drawn from the English Mastiff and the extinct Old English Bulldog. It was recognized as a purebred dog by the English Kennel Club in 1924. They are quiet dogs and very rarely bark.

Males should stand 25–27 inches (64–69 cm) tall (American Kennel Club (AKC) standard) at the withers and weigh110–130 pounds (50–59 kg). Females should be 24–26 inches (61–66 cm) at the withers, and 100–120 pounds (45–54 kg). Exceeding these dimensions is discouraged by breeders.

A Bullmastiff's coat may appear in fawn, red, or brindle. These are the only acceptable colors in the AKC standard. The fawn can range from a very light brown to a reddish brown. Red can range from a light red-fawn to a dark, rich red. Brindles are a striped overlay of the fawn or red. A Bullmastiff should have no white markings, except for on the chest where a little white is allowed.

Bullmastiffs are a large working breed originating in Britain in the mid 1800s as estate guardians to ward off poachers. They were bred by gamekeepers for strength, size and speed using a cross of the tough, heavy and aggressive Bulldog of the 19th century with the large, strong, less aggressive Mastiff. As a result, the Bullmastiff is known as the Gamekeeper's Night Dog. The preferred color, by gamekeepers, was brindle, as this color works as a more effective camouflage, especially at night.

The Bullmastiff breed was deemed pure by the English Kennel Club in 1924, with a genetic background of approximately 60% Mastiff and 40% Bulldog. In 1934, the AKC recognized the Bullmastiff. The first standard for the breed was approved in 1935. The standard has undergone several revisions since then; the most current version is available on the AKC website.

Bullmastiffs are strong, powerful, but sensitive dogs. For a Bullmastiff to become a well-behaved family member, consistency is needed. Training and socialization is of high importance, as the breed can be independent. Dogs of this breed are natural guardians of their home and owners. No special guard training is needed for a Bullmastiff to react appropriately if its family is endangered. During training, a Bullmastiff requires a special approach, because these dogs do not like to repeat the same actions again and again. Activities Bullmastiffs enjoy include obedience, agility, tracking, and carting.

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