Loving
Stubborn
Independent
Energetic
Alert
Courageous
Friendly
Social
Sweet
Aggressive
Cheerful

Protective

Bull Jacks are heavy shedders, but regular brushing can help manage shedding and promote a healthy coat.

Uruguayan Cimarrons are moderate shedders, but regular brushing can reduce shedding and maintain coat health.

Bull Jacks aren't great guard dogs; they tend to just watch without taking action.

Choose an Uruguayan Cimarron if you want a top-notch watchdog. This breed takes guarding seriously, and may not require much training, though obedience or guard dog training can improve their skills.

United States

Uruguay

Bulldog, Jack Russell Terrier

Mastiff-type

Unknown

1400's

Brown

Brown

Black

Black

Brown
White
Black

Fawn
Brindle

Wiry

Straight

A Bull Jack can have a litter of 4-8 puppies on average. However, it's worth noting that the size of the litters can vary greatly. Factors that can influence litter size include the health of the mother, breeding history, and genetics.

An Uruguayan Cimarron can have a litter of 12-15 puppies on average. However, it's worth noting that the size of the litters can vary greatly. Factors that can influence litter size include the health of the mother, breeding history, and genetics.

Bull Jacks are highly adaptable and versatile, making them excellent companions for families and individuals of all lifestyles.

Uruguayan Cimarrons may have difficulty adjusting to changes in lifestyle and living environments, preferring consistency.

Patellar Luxation
Glaucoma
Hip Dysplasia
Hemolytic Anemia

Usually A Very Healthy Breed

Cherry Eye
Epilepsy
Heart Murmur
Atopy
Mass Cell Tumor

Entropion
Ectropion
Hip And Elbow Dysplasia
Gastric Dilation Volvulus (GDV) or Bloat

X-Rays
Eye Examination
Electrocardiogram
Complete Blood Count
Skin Biopsy
Allergy Testing

CERF
Yearly Physical Examination
OFA on hips and elbows

Bull Jack has above average social needs and thrives with interaction with humans and other dogs.

Uruguayan Cimarron has average social needs and is less independent than other breeds.

Bull Jacks need moderate physical activity and are great for families and active individuals.

Uruguayan Cimarrons need high physical activity and are ideal for active individuals, but not suitable for sedentary lifestyles or small apartments.

Bull Jacks are typically quiet and only bark when needed, such as to alert their owner or when in distress.

Uruguayan Cimarron dogs are generally less vocal than other breeds and only bark when necessary, such as to alert their owner or communicate.

Bull Jacks are high-energy dogs. They need mental as well as physical exercise. These dogs require a lot of your involvement and without it they can, and will, become problematic dogs.

Uruguayan Cimarrons are medium-energy dogs and typically enjoy socializing and playing casual or even sustained games of chase with other dogs. They may also have occasional periods of barking or racing around the house.

There's really no limit to how far you walk your dog as long as they're comfortable. For Bull Jack, it's at least 12 miles / week. Just remember to build distance and stamina gradually over time.

There's really no limit to how far you walk your dog as long as they're comfortable. For Uruguayan Cimarron, it's at least 9 miles / week. Just remember to build distance and stamina gradually over time.

In general most Bull Jacks usually need at least 60 minutes of exercise daily. This can be spread across the day and include all sorts of high-energy activities, like walking, running and playing.

In general most Uruguayan Cimarrons usually need at least 45 minutes of exercise daily. This can be spread across the day and include all sorts of high-energy activities, like walking, running and playing.

The Bull Jack requires an average amount of grooming compared to other breeds.

The Uruguayan Cimarron is a low-maintenance breed that doesn't require much grooming.

Slicker Brush
Comb
Nail Clipper

Slicker Brush
Deshedder
Nail Clipper

The average cost of a Bull Jack is somewhere $1.70 - $2.00 per day.

The average cost of an Uruguayan Cimarron is somewhere $2.10 - $2.70 per day.

The average per month expenses of a Bull Jack is between $49 - $63. This makes an average of $588 - $756 per year. It will be on the higher side when the dog is still small because it will need more frequent visits to the vet, shots.

The average per month expenses of an Uruguayan Cimarron is between $55 - $73. This makes an average of $660 - $876 per year. It will be on the higher side when the dog is still small because it will need more frequent visits to the vet, shots.

Bull Jack has below average obedience intelligence, but they excel in understanding human emotions.

Uruguayan Cimarron is a very intelligent and trainable breed.

This breed is sensitive and requires gentle handling and a calm home environment.

Uruguayan Cimarrons are easygoing, low-sensitivity dogs that make low-maintenance and stress-free pets.

Bull Jacks are good apartment dogs as long as they get enough exercise and stimulation outside of the apartment.

The Uruguayan Cimarron is not suitable for apartments and requires a large yard to thrive. Pent-up energy in small spaces can lead to destructive behavior.

Bull Jacks are good with kids if socialized and trained from a young age.

Uruguayan Cimarrons are not the best choice for families with kids.

Bull Jacks are good with cats, but early training is needed to prevent chasing behavior.

Uruguayan Cimarrons are not cat friendly.

Bull Jacks are generally very friendly towards other dogs, with a happy and affectionate temperament.

Uruguayan Cimarrons are less friendly towards other dogs, but can improve with socialization.

Bull Jacks are friendly but may bark at strangers, and training is easy due to their intelligence.

Uruguayan Cimarrons are not very stranger friendly.

Bull Jacks are usually easy to train but require consistency to fully obey commands.

Uruguayan Cimarrons may require more time and patience to learn commands, but with consistency, they can be trained.