Stubborn
Independent
Energetic
Protective
Alert
Courageous
Intelligent
Loyal
Fearless
Good-natured
Cheerful

Protective
Alert
Courageous
Intelligent
Affectionate
Loyal
Devoted
Outright
Tempered
Companionable
Cheerful
Vigilant

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

Muscle Mastiffs are moderate shedders, but regular brushing can reduce shedding and maintain coat health.

Jack Russell Terrier and Rottweiler

Mastiff, Dogue de Bordeaux

DRA = Dog Registry of America, Inc.

ACHC = American Canine Hybrid Club
DBR = Designer Breed Registry
DDKC = Designer Dogs Kennel Club
DRA = Dog Registry of America, Inc.

Brown

Hazel
Brown

Black

Black
Isabella

White
Black

Black
Brown
Red
Silver

Jackweilers have medium-length coats.

Muscle Mastiffs have short coats.

A Jackweiler can have a litter of 8-12 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.

A Muscle Mastiff can have a litter of 4-6 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.

While the Jackweiler breed is generally healthy, occasional vet check-ups are still necessary to address any health concerns.

The Muscle Mastiff breed is generally very healthy, requiring minimal vet visits. Still, it's important to keep an eye on their health and seek veterinary care when needed.

Patellar Luxation
Entropion
Hip Dysplasia
Legg-Calve-Perthes Disease

Gastric Torsion
Hip Dysplasia
Heart Disease
Cancer
Brachycephalic Syndrome

Elbow Dysplasia
Ichthyosis

Entropion
Ectropion
Elbow Dysplasia
Progressive Retinal Atrophy
Retinal Dysplasia
Bloat
Ichthyosis
Eye conditions

X-Rays
MRI
CT Scan
Ultrasound
Optical Exam
Fluorescein Test
Schirmer Tear Test
Joint Fluid Sample
Blood Count
Urine Sample

Eye
Hip
Elbow
Heart
Thyroid Tests
Skin Scraping
Respiratory Tests
Blood Analysis

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

Muscle Mastiff has average social needs and is less independent than other breeds.

Jackweilers sleep less than other breeds but still need adequate sleep for good health.

Muscle Mastiffs are known for their relaxed and calm nature and enjoy long periods of sleep.

Tug-of-war, Dog Parks, Car rides, Walk, Walking, Hiking, Running, Playing, Snuggling

Playing fetch

Jackweilers 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.

Muscle Mastiffs 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 Jackweiler, 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 Muscle Mastiff, it's at least 10 miles / week. Just remember to build distance and stamina gradually over time.

Comb
Deshedder
Nail Clipper

Pin Brush
Slicker Brush
Deshedder
Nail Clipper

For an average 13-115 pound (6 - 52 kg) Jackweiler feed 3 cups daily. But, keep in mind, the amount you feed is going to be dependent on the quality of the food you are feeding.

For an average 144-190 pound (65 - 86 kg) Muscle Mastiff feed 6 cups daily. But, keep in mind, the amount you feed is going to be dependent on the quality of the food you are feeding.

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

The average cost of a Muscle Mastiff is somewhere $5.60 - $7.00 per day.

The average per month expenses of a Jackweiler is between $48 - $63. This makes an average of $576 - $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 a Muscle Mastiff is between $168 - $210. This makes an average of $2016 - $2520 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.

Jackweilers have an average level of friendliness towards children.

Muscle Mastiffs make excellent family pets for kids due to their gentle, protective nature and calm temperament.

Jackweilers are average in their friendliness toward cats and tend to do well with them, especially if raised together.

Muscle Mastiffs are very friendly with cats and make great companions for them.

Jackweilers are average in their friendliness towards other dogs, and socialization can help.

Muscle Mastiffs are friendly and active companions, and can be good family pets, though their friendliness towards other dogs may vary.

Jackweilers are quick to announce strangers and can be standoffish or suspicious.

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

Jackweilers are a playful breed that needs daily playtime to be happy.

Muscle Mastiffs are not known for being a highly playful breed.

Jackweilers are popular for their ease of training and quick learning ability.

Muscle Mastiffs are usually easy to train but require consistency to fully obey commands.