Adaptable
Fearless
Loyal
Companionable
Loving
Obedient

Active
Playful
Stubborn
Independent
Happy
Energetic
Alert
Courageous
Intelligent
Friendly
Outgoing
Lively
Gentle
Cheerful

Leonbergers shed a lot of hair each year, so frequent brushing is essential for reducing shedding and maintaining coat health.

Jack Tzus are moderate shedders, but regular brushing can reduce shedding and maintain coat health.

Choose a Leonberger 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.

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

Germany

​United States

newfoundland, long haired saint bernard, pyrenean mountain dog

Jack Russell Terrier, Shih Tzu

American Canine Registry
American Kennel Club
America's Pet Registry
Canadian Kennel Club
Dog Registry of America Inc.
Federation Cynologique Internationale
Kennel Club of Great Britain
North American Purebred Registry, Inc.
American Canine Association, Inc.
Continental Kennel Club
National Kennel Club
New Zealand Kennel Club

DBR = Designer Breed Registry

1800s

​Unknown

Brown

Brown

Black

Black

Black
Gray
Brown
Red
Cream
Sable
Brindle

White
Black
Brown
Cream
Pied

Leonbergers have medium-length coats.

Jack Tzus have longer coats compared to most dogs.

A Leonberger can have a litter of 8-10 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 Jack Tzu 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.

Leonbergers have average adaptability to changes in lifestyle and living environments compared to other breeds.

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

Leonbergers are susceptible to health issues like all breeds, so it's important to monitor their health and seek veterinary care when needed.

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

Hip Dysplasia
Eye Problems

Patellar Luxation
Deafness
Exposure Keratopathy Syndrome

Laryngeal Paralysis
Inherited Leonberger Polyneuropathy

Eye Abnormalities
Hydrocephalus
Dermoid Sinus
Familial Nephropathy
Tracheal Collapse
Diabetes
Von Willebrand's Disease
Hypothyroidism
Brachycephalic Syndrome
Cleft Palate
Cutaneous Asthenia
Intervertebral Disk Disease
Dilated Cardiomyopathy (DCM)
Persistent Pupillary Membranes (PPM)
Mitral Valve Dysplasia

Hip X-Rays
Eyes
Hips
Skeletal
Physical Examination
Throat

Dna Test For Vwd
Thyroid Tests
Physical Examination
Eye Examinations
Urinalysis
Blood Work
Full Physical Examination regarding joint movement around the hip and kneecap
Heart Rate Tests

Leonbergers' high energy levels make them unsuitable for a low-key dog, choose accordingly.

Jack Tzus are suitable for those with a balanced lifestyle as they have an average energy level.

Leonberger has very high social needs and requires regular mental and physical stimulation, a job or purpose, and companionship.

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

Leonbergers require significant physical activity and suit those with an active lifestyle.

Jack Tzus need moderate physical activity and are great for families and active individuals.

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

Jack Tzus have moderate energy levels and typical sleep patterns of 12-14 hours per day.

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

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

Leonbergers 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.

Jack Tzus 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.

There's really no limit to how far you walk your dog as long as they're comfortable. For Leonberger, it's at least 15 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 Jack Tzu, it's at least 12 miles / week. Just remember to build distance and stamina gradually over time.

In general most Leonbergers 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 Jack Tzus usually need at least 120 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 Leonberger requires an average amount of grooming compared to other breeds.

Jack Tzus require significant grooming, including regular trims and professional grooming assistance to maintain their coat. They may also require frequent bathing to keep their coat and skin healthy.

Pin Brush
Dematter
Comb
Nail Clipper

Pin Brush
Slicker Brush
Comb
Nail Clipper

For an average 120-170 pound (54 - 77 kg) Leonberger feed 4.5 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 14-23 pound (6 - 10 kg) Jack Tzu feed 1 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 Leonberger is somewhere $4.20 - $4.90 per day.

The average cost of a Jack Tzu is somewhere $1.30 - $1.40 per day.

The average per month expenses of a Leonberger is between $126 - $147. This makes an average of $1512 - $1764 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 Jack Tzu is between $35 - $42. This makes an average of $420 - $504 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 Leonberger is not suitable for apartments and requires a large yard to thrive. Pent-up energy in small spaces can lead to destructive behavior.

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

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

Jack Tzus have an average level of friendliness towards children.

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

Jack Tzus are good with cats, but early training is needed to prevent chasing behavior.

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

Jack Tzus are generally very friendly towards other dogs, with a happy and affectionate temperament.