French Mastahoula

The French Mastahoula is a cross between the French Mastiff and the Louisiana Catahoula Leopard Dog. Because each hybrid inherits a unique combination of traits from both parents, we recommend thoroughly researching both breeds before choosing a French Mastahoula. Pay special attention to temperament, health issues, and care requirements, as your dog may express characteristics from either parent breed.

French Mastiff

French Mastiff

The Dogue de Bordeaux, also known as the French Mastiff, is a powerful, well-muscled dog with a massive build that commands immediate attention. Males typically stand 24 to 27 inches at the shoulder and weigh between 110 and 145 pounds, while females measure 23 to 26 inches and weigh 99 to 120 pounds. The breed is set somewhat low to the ground compared to other mastiff types, with a thick-set body featuring great depth and breadth, particularly between the forelegs. The distance from the deepest point of the chest to the ground is slightly less than the depth of the chest, contributing to the breed's powerful stance. The most distinctive feature of the French Mastiff is its enormous head, which is proportionally the largest in the canine kingdom relative to body size. The skull is broad and rounded, featuring deep wrinkles and a pronounced forehead. When viewed from above or front, the head forms a trapezoid shape. The muzzle is powerful and broad, measuring approximately one-third the total length of the head, with a pronounced underbite and powerful jaws. The upper lips hang thickly over the lower jaw, and the breed displays either a black or red mask that extends around and under the nose, including the lips and eye rims. The coat is short, fine, and soft to the touch, coming exclusively in various shades of fawn ranging from light fawn to dark red or mahogany. The skin on the neck is loose, forming a noticeable dewlap, while facial skin creates characteristic deep wrinkles that add to the breed's distinguished appearance. The front legs are straight and heavy-boned with tight, cat-like feet, while the straight tail begins thickly at the base, tapers to a point, and should not extend below the hocks. The overall impression is one of extreme power combined with an imposing yet noble bearing.

Key Characteristics

Temperament
Temperament Temperament Temperament Temperament Temperament Temperament The breed tends to be relatively laid-back and does not require excessive exercise, preferring moderate daily activity to maintain physical condition. French Mastiffs are content to spend time lounging near their families and do not cope well with isolation or being left alone for extended periods. They can be territorial and protective of their home, making them natural watchdogs, though they typically assess situations calmly before taking action. Their quiet, confident demeanor makes them excellent companions for owners who appreciate a dignified, loyal dog that provides both companionship and a sense of security.
Health Considerations
Health Considerations Health Considerations Health Considerations Health Considerations Health Considerations Health Considerations Skin fold dermatitis is common due to the breed's extensive facial wrinkles, requiring regular cleaning and drying of folds to prevent bacterial and yeast infections. Eye conditions including entropion (eyelids rolling inward) and ectropion (eyelids rolling outward) can cause irritation and require surgical correction in severe cases. Cancer rates are elevated in the breed, contributing to their relatively short lifespan. Regular veterinary checkups, attention to weight management, proper skin care, and awareness of heat sensitivity are essential for maintaining health and quality of life in this magnificent but medically challenging breed.
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Louisiana Catahoula Leopard Dog

Louisiana Catahoula Leopard Dog

The Louisiana Catahoula Leopard Dog is a medium to large, well-muscled working dog with a powerful build that conveys both agility and endurance. The breed stands 22 to 24 inches at the shoulder with an acceptable range of two inches either way, and weighs between 50 and 95 pounds depending on height and build. Males tend toward the larger end of the spectrum while females are typically somewhat smaller. The body is rectangular in shape, slightly longer than tall, with the length coming from a deep chest rather than excessive leg length, giving the dog a substantial yet athletic appearance. The head is powerfully built without appearing exaggerated, with a broad, flat skull and well-developed cheeks. The muzzle is strong and deep, tapering moderately toward the nose, with a length approximately equal to that of the skull. The breed displays remarkable variation in eye color, which can include blue, brown, green, or amber, with heterochromia (two different colored eyes) or eyes with multiple colors within the same eye being common and highly prized. The medium-sized drop ears are set at or just below the top line of the skull and hang close to the cheeks. The Catahoula's coat is perhaps its most distinctive feature, coming in an astonishing variety of colors and patterns. The leopard pattern, caused by the merle gene, is most commonly associated with the breed and features a solid base color with contrasting spots of one or more other colors. Coat colors include blue merle, red merle, brindle, and solid colors including black, red, chocolate, and yellow. The single coat is short to medium in length and lies close to the body. The tail is long, carried in a natural curve, and should not be docked. Predominantly white coats are discouraged due to their association with deafness in the breed.

Key Characteristics

Temperament
Temperament Temperament Temperament Temperament Temperament Temperament Training a Catahoula requires confident, consistent leadership, as these intelligent dogs will quickly assume the leadership role themselves if they sense uncertainty from their owners. They respond best to firm but fair handling using positive reinforcement methods, with harsh corrections typically backfiring with this sensitive breed. When properly trained and socialized, Catahoulas can coexist peacefully with other dogs and pets, though their high prey drive may make them unsuitable for homes with small animals. Their intense work ethic and desire to please make them excellent candidates for various canine sports and activities including agility, tracking, and herding competitions.
Health Considerations
Health Considerations Health Considerations Health Considerations Health Considerations Health Considerations Health Considerations Eye conditions occur with some frequency in the breed, including progressive retinal atrophy, cataracts, entropion, and ectropion. The merle gene responsible for the breed's distinctive coat patterns can also affect eye development, potentially causing abnormalities in heavily marked individuals. Regular veterinary eye examinations can help detect problems early. Additionally, the breed can be susceptible to chondrodystrophy, a skeletal disorder causing shortened limbs and predisposing dogs to intervertebral disc disease. Some bloodlines carry genes for hyperuricosuria, which predisposes affected dogs to forming urinary stones. Genetic testing is available for several of these conditions and responsible breeders screen their dogs before breeding.
Learn More About The Louisiana Catahoula Leopard Dog

Important to Remember

Each hybrid dog is unique and may inherit any combination of traits from either parent breed. The information above represents the characteristics of the purebred parent breeds. Your French Mastahoula may favor one parent over the other or display a blend of both. We strongly encourage you to read the complete breed profiles for both the French Mastiff and Louisiana Catahoula Leopard Dog to fully understand the range of possible temperaments, health concerns, and care requirements.