The Bullmastiff is a large-sized breed of domestic dog, with a solid build and a short muzzle. The Bullmastiff is mastiff type dog, and was originally developed by 19th-century gamekeepers to guard estates. The breed was created by crossing the English Mastiff with the  now extinct Old English Bulldog. 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. Dogs of this breed are natural guardians of their home and owners. Butkus – actual pet of actor Sylvester Stallone and featured in the movie Rocky.
[{"famous_owners": " Sylvester Stallone", "actor": "yes"}]
[{"famous_owners": " Sylvester Stallone", "actor": "yes"}]