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American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Comparison - Dog breed selector: AM Mastiff or Black Terrier or Karakachanska Ovcharka? Find the right dog for you

"Find similarities and differences between American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog" Compare American Mastiff and Black Russian Terrier. Which is better: American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
 
 
 
Name American Mastiff Black Russian Terrier Bulgarian Shepherd Dog
OriginsUnited States flagUnited States Russia flagRussia Bulgaria flagBulgaria
Group Working Dogs Working Dogs Guard Dogs
Popularity Rank447116434
Reviews145
User Ratings

Other Names
What other names do they have?
AM Mastiff Black Terrier
Mustaterrieri
Russian Bear Schnauzer
Schwarzer Russicher Terrier
Stalin's Dog
Tchiorny Terrier
Terrier Noir Russem
Chornyi
Karakachanska Ovcharka
Karakachansko Kuche
Thracian Mollos
Ovcharsko kuche
Breed Type
Which dog is purebred or crossbreed? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog breed type comparison:
Purebred Purebred Purebred

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Size and Weight Comparison

Size
Which is bigger, American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? Which is the smallest dog, American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
Giant Giant Giant
Weight
Which is heavier, American Mastiff or Black Russian Terrier or Black Russian Terrier? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog weight comparison:
Male: 160-200 pounds (72-90 kg), Female: 140-180 pounds (63-81 kg) 80-143 pounds (36-65 kg) Male: 100-115 pounds (45-52 kg), Female: 70-90 pounds (32-41 kg)
Average Weight
Which dog has a smaller / higher average weight?
Male: 180 pounds (81 kg), Female: 160 pounds (72 kg) 111.5 pounds (50.5 kg) Male: 115.5 pounds (52.5 kg), Female: 88 pounds (40 kg)
Height
Which is taller, American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog height comparison:
28-36 inches (65-91 cm) Male: 25-29 inches (64-74 cm), Female: 25-28 inches (64-72 cm) Male: 25–30 inches (63.5-76 kg) Female: 24–28 inches (61-71 cm)
Average Height
Which dog has a smaller / higher average height?
32 inches (78 cm) Male: 27 inches (69 cm), Female: 26.5 inches (68 cm) Male: 27.5 inches (70 cm), Female: 26 inches (66 cm)

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Price and Availability Comparison

Price
Which is cheaper, American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? Which is more expensive?
$1000-$1500 $1800-$2500 $800-$1000
Availability
Which is easier to get, American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
Rare: You may rarely see each other in everyday life, but you might catch a glimpse of each other at dog shows.
Frequent: The Black Russian Terrier is easier than average to get.
Rare: You may rarely see each other in everyday life, but you might catch a glimpse of each other at dog shows.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Trainability and Intelligence Comparison

Intelligent Rank
Which is the smarter dog? Which is best? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog intelligence:
Smart: The American Mastiff dogs have great intelligence.
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Low to average: This canine intelligence is not the brightest one.
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Average: It takes patience to teach this breed any tricks or commands, but the effort is worth it.
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Trainability
American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog trainability comparison.
American Mastiff dogs are easy to train.
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Black Russian Terrier dogs are easy to train.
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Bulgarian Shepherd Dog dogs are quite easy to train.
See more.
Watchdog Ability
Which is the better watchdog: American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
American Mastiff dogs are good watchdogs.
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Black Russian Terrier dogs are one of the best watchdogs.
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Bulgarian Shepherd Dog dogs are good watchdogs.
See more.
Guarding Behavior / Territorial
Which is a better guard dog American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? Which dog is most likely to protect its owner? Which is the best dog to use for protection?
American Mastiff dogs strongly protect their territory.
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Black Russian Terrier dogs are extremely protective guard dogs.
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Bulgarian Shepherd Dog dogs are extremely protective guard dogs.
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American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Personality and Temperament Comparison

Temperament
Which one has a better personality? Which is a better family dog, American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog behavior/temperament comparison:
Dignified
Protective
Courageous
Affectionate
Good-natured
Calm
Playful
Independent
Energetic
Confident
Affectionate
Lively
Gentle
Social
Cheerful
Brave
Stable
Defensive
Independent
Intelligent
Dominant
Proud
Brave
Vigilant
Sensitivity Level
Which dog is more sensitive? What's the difference?
American Mastiff dogs have an average emotional level and are not the most sensitive dog breed.
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They are a little bit more sensitive than other dog breeds.
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Bulgarian Shepherd Dog dogs have an average emotional level and are not the most sensitive dog breed.
See more.
Affection Level
Which is the more affectionate dog breed: American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog?
Average: American Mastiff dogs are average dogs regarding their affection level.
See more.
Average to High: Black Russian Terrier dogs are highly affectionate dogs.
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High: Bulgarian Shepherd Dog dogs are genuinely loyal, soft and gentle, loving, and affectionate dogs toward their handlers.
See more.
Social Needs
American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog social needs comparison:
American Mastiff dogs need for social interaction is average.
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Black Russian Terrier dogs need for social interaction is average.
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Bulgarian Shepherd Dog dogs need a lot of social interaction.
See more.
Impulse to Wander or Roam
Which dog has a greater roaming instinct?
American Mastiff dogs have average wanderlust potential.
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Black Russian Terrier dogs have average wanderlust potential.
See more.
The wanderlust potential of the Bulgarian Shepherd Dog is strong enough to escape from home.
See more.
Prey Drive
Which dog has a higher prey drive? Which can be better for hunting?
American Mastiff dogs have a higher impulse to chase and catch something than other dog breeds.
See more.
Black Russian Terrier dogs have an average prey drive, which means that they don't have a high impulse to chase and catch something like a cat or any other small aminals, but it might happen.
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Bulgarian Shepherd Dog dogs have an average prey drive, which means that they don't have a high impulse to chase and catch something like a cat or any other small aminals, but it might happen.
See more.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Activity and Playfulness Comparison

Playfulness
American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog playfulness comparison:
Average: American Mastiffs, like any other dog breed, like playing.
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Average: Black Russian Terriers, like any other dog breed, like playing.
See more.
Average: Bulgarian Shepherd Dogs, like any other dog breed, like playing.
See more.
Barking
Which dog barks more/less: American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog?
Low to Average: The American Mastiff rarely barks.
See more.
Average: The Black Russian Terrier barks occasionally.
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Low to Average: The Bulgarian Shepherd Dog rarely barks.
See more.
Apartment Friendly
Which dog is more apartment friendly American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
It is not the best choice if you want to keep them indoors, however, with careful exercise and several walks a day, they will tolerate the indoor environment, so it is possible to keep American Mastiff indoors.
It is not the best choice if you want to keep them indoors, however, with careful exercise and several walks a day, they will tolerate the indoor environment, so it is possible to keep Black Russian Terrier indoors.
It is not recommended to keep the Bulgarian Shepherd Dog breed in the home.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Adaptability and Independence Comparison

Adaptability
Which dog has a higher adaptability potential? Which is the better dog?
Average: American Mastiff dogs adapt to lifestyle changes and different living environments quite okay usually.
Average: Black Russian Terrier dogs adapt to lifestyle changes and different living environments quite okay usually.
Average: Bulgarian Shepherd Dog dogs adapt to lifestyle changes and different living environments quite okay usually.
Tolerates Being Left Alone
Which dog can be left alone: American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
Just like every puppy, they are prone to panic, cry, bark, whine when they left alone by their owner.
Just like every puppy, they are prone to panic, cry, bark, whine when they left alone by their owner.
Bulgarian Shepherd Dog dogs tend to have separation anxiety when their owners left them alone at home because they bond very closely with them.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Bite Characteristics Comparison

Bite Force PSI
Which bite is stronger: American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?

Above 400 PSI 🔼

American Mastiff bite force: The Strongest.

Above 400 PSI 🔼

Black Russian Terrier bite force: The Strongest.

Above 400 PSI 🔼

Bulgarian Shepherd Dog bite force: The Strongest.
Biting Potential
Which breed of dog is most likely to bite? Biting potential comparison:

Moderate

The American Mastiff has an average chance of biting somebody.

Low 🔽

The Black Russian Terrier has a low chance of biting somebody.

Low 🔽

The Bulgarian Shepherd Dog has a low chance of biting somebody.
Mouthiness
Which is the better dog? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog mouthiness comparison:
American Mastiff dogs have a higher than average tendency to nip, chew, playbite, or herd people.
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Black Russian Terrier dogs have a higher than average tendency to nip, chew, playbite, or herd people.
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Bulgarian Shepherd Dog dogs have an average tendency to nip, chew, playbite, or herd people.
See more.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Health and Lifespan Comparison

Health Issues
American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog health comparison. Which is the healthier: American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog?
The American Mastiff is a healthy breed, but there are certain health issues that you should check with your vet regularly.
Black Russian Terriers tend to have more frequent health issues than other breeds.
Bulgarian Shepherd Dogs tend to have more frequent health issues than other breeds.
Health Problems
Which one has more or less genetic/health problems: American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog? What are the allergies, genetic diseases and concerns for them? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog health problems comparison:
Cataracts
Hip Dysplasia
Cancer
Hypothyroidism
Progressive retinal atrophy (PRA)
Bloat
Entropion
Skin Infections
Skin Irritation
Ectropion
Elbow Dysplasia
Arthritis
Cystine Urolithiasis
Drooling
Exposure Keratopathy Syndrome
Heart Disease
Osteoarthritis
Retinal Dysplasia
Snoring
Hip Dysplasia
Allergies
Progressive retinal atrophy (PRA)
Elbow Dysplasia
Urinary Stones
No data available
Veterinarian Visits
Which one may need more or less veterinary visits?
Average
The American Mastiff should have a complete physical check-up at least once per year.
Frequent
The Black Russian Terrier should have a complete physical check-up at least once (but preferably twice) per year.
Frequent
The Bulgarian Shepherd Dog should have a complete physical check-up at least once (but preferably twice) per year.
Life Expectancy
American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog lifespan comparison. How long do American Mastiff, Black Russian Terrier and Bulgarian Shepherd Dog breeds live? Which one has a longer lifespan/life expectancy?
10-12 years
The average lifespan of American Mastiff: 11 years
10-14 years
The average lifespan of Black Russian Terrier: 12 years
12-14 years
The average lifespan of Bulgarian Shepherd Dog: 13 years
Weather and Climate
Which dog is best for hot or cold weather: American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog?
Prefers average to warm weather conditions
Different dogs have different preferences when it comes to weather conditions.
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Tolerates warm and cold weather
Dogs that tolerate hot and cold weather are typically those that have a double coat of fur.
See more.
Prefers average to cold weather conditions
The Bulgarian Shepherd Dog can adapt to well to cold weather conditions, some dogs even can be a good mountain dog.
See more.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Energy and Activity Comparison

Energy Level
Who has more energy a American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog energy level comparison:
American Mastiff dogs have a lower energy level than other dogs.
Black Russian Terrier dogs have a higher energy level than other dog breeds.
Bulgarian Shepherd Dog dogs have an average energy level, so if you live a semi-active life, this breed can be a good choice for you.
Activity Requirement / Exercise Need
American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog exercise need comparison. Which dog needs more activity? Which dog needs the most exercise: American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? Which dog needs the most walking? Which dog is the laziest?
American Mastiff dogs exercise need is minimal.
Black Russian Terrier dogs need quite a lot of exercise.
Bulgarian Shepherd Dog dogs have an average exercise need.
Sleeping Need
Which one sleeps the least/most: American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
American Mastiff dogs like sleeping so they do sleep a lot.
Black Russian Terrier dogs are quite energetic dogs and they don't spend too much time with sleeping.
Bulgarian Shepherd Dog dogs sleep 12-14 hours a day as an average dog and they're not considered a lazy breed.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Diet and Weight Management Comparison

Average daily food consumption
Which dog eats more: American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
6 to 8 cups of high-quality dry food a day, divided into two meals. 3 to 4.5 cups of high-quality dry food a day, divided into two meals. 6 to 8 cups of high-quality dry food a day, divided into two meals.
Weight Gain Potential / Prone to Obesity
Which dog breed is more prone to obesity? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog weight gain potential comparison:
Average: The American Mastiff has an average risk for obesity.
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Average: The Black Russian Terrier has an average risk for obesity.
See more.
Average to High: If you don't pay attention to the Bulgarian Shepherd Dog's weight, he can easily gain weight.
See more.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Allergies and Grooming Comparison

Coat / Hair Types
What type of coat/fur do they have? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog coat comparison:
Straight Rough
Curly
Waterproof
Thick
Colors
What are the original American Mastiff, Black Russian Terrier and Bulgarian Shepherd Dog color?
White
Fawn
Brindle
Apricot
Black
Gray
Spotted
Tricolor
Black & White
Grooming
Which dog is easy to maintain, American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog grooming comparison:
Average: The American Mastiff requires average grooming effort.
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Average: The Black Russian Terrier requires average grooming effort.
See more.
Advanced: The Bulgarian Shepherd Dog requires a lot of grooming.
See more.
Shedding Level
Who sheds more American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? American Mastiff or Black Russian Terrier or {name3 shedding:
American Mastiff dogs shed moderately.
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Black Russian Terrier dogs shed none to minimal.
See more.
Bulgarian Shepherd Dog dogs shed above average.
See more.
Bath Time / Bathing Frequency
Which dog should be bathed more: American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
3-4 weeks
More often than average. These dog coats tend to be longer, softer, and oilier than short-haired breeds.
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3-4 weeks
More often than average. These dog coats tend to be longer, softer, and oilier than short-haired breeds.
See more.
6-8 weeks
Rarely. Bathing your dog is beneficial to them in more ways than just one.
See more.
Hypoallergenic
American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog hypoallergenic comparison. Which dog is hypoallergenic or not?
No See more. No See more. No See more.
Stinkiness
Which dog breed smells the least? Which dog smells the most? Which is best, American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog?

High 🔼

The American Mastiff has a high chance of bad smell.

Medium

The Black Russian Terrier has an average chance of bad smell.

Medium

The Bulgarian Shepherd Dog has an average chance of bad smell.
Drooling Tendency
Which dog drools the most? Which dog drools the least?
The American Mastiff is a big drooler, so if you're disgusted by slobber spots on your clothes, you should choose a dog from another breed.
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The Black Russian Terrier is an average drooler.
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The Bulgarian Shepherd Dog is an average drooler.
See more.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Good With Comparison

Pet Friendly
Which dog breeds get along well with other animals/pets?
American Mastiff dogs are generally with other pets.
Black Russian Terrier dogs are generally with other pets.
Bulgarian Shepherd Dog dogs are generally with other pets.
Stranger Friendly
Which dog is more stranger friendly American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? Which dog is more friendly?
American Mastiff dogs are average friendly towards strangers.
Black Russian Terrier dogs are not stranger friendly dogs.
Bulgarian Shepherd Dog dogs are not the most stranger-friendly dogs.
Child Friendly
Which dog is more child/kid friendly American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
American Mastiff dogs are kid-friendly dogs.
Black Russian Terrier dogs are average friendly dogs towards children.
Bulgarian Shepherd Dog dogs are kid-friendly dogs.
Cat Friendly
Which dog is more cat friendly American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
American Mastiff dogs are average friendly towards cats.
Black Russian Terrier dogs are average friendly towards cats.
Bulgarian Shepherd Dog dogs are average friendly towards cats.
Dog Friendly
Which dog is more dog friendly American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog?
American Mastiff dogs are average friendly towards other dogs.
Black Russian Terrier dogs are average friendly towards other dogs.
Bulgarian Shepherd Dog dogs are average friendly towards other dogs.
Good For First Time Owners
Which dog is good for the first-time owners: American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog?
Yes
American Mastiff dogs are good for novice owners, due to their easy-going personality.
Yes
Black Russian Terrier dogs are good for novice owners, due to their easy-going personality.
Yes
Bulgarian Shepherd Dog dogs are good for novice owners, due to their easy-going personality.
Office Friendly
Which one fits better in the office?
No
American Mastiff is not the best dog breed for office environment.
No
Black Russian Terrier is not the best dog breed for office environment.
No
Bulgarian Shepherd Dog is not the best dog breed for office environment.
Senior Citizens Friendly
Which dog is good for elderly people?
American Mastiffs are usually recommended for elderly people.
Black Russian Terriers are commonly okay with elderly people.
Bulgarian Shepherd Dogs are usually recommended for elderly people.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog As a Working Dog Comparison

Service Dog
Which one could be a service dog?

Not really

This breed generally not used as a service dog.
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Not really

This breed generally not used as a service dog.
See more.

Not really

This breed generally not used as a service dog.
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Therapy Dog
Which one could be a therapy dog: American Mastiff or Black Russian Terrier or Bulgarian Shepherd Dog? Which is better for autism?

Not really

This breed is generally not used as a therapy dog.
See more.

Not really

This breed is generally not used as a therapy dog.
See more.

Not really

This breed is generally not used as a therapy dog.
See more.
Detection Dog or Sniffer Dog
Which one could be a detection/sniffer dog?

Not really

They are not typically employed for this type of work, but there may be exceptional cases.

Not really

They are not typically employed for this type of work, but there may be exceptional cases.

Not really

They are not typically employed for this type of work, but there may be exceptional cases.
Search and Rescue Dog (SAR)
Which one could be a search and rescue dog?

Not really

This dog breed is not typically used as a search and rescue dog.

Not really

This dog breed is not typically used as a search and rescue dog.

Not really

This dog breed is not typically used as a search and rescue dog.
Boat and Sailor Dog
Which one could be a boat dog: American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog?

Not really

American Mastiff breed usually doesn't like being on a boat.
See more.

Not really

Black Russian Terrier breed usually doesn't like being on a boat.
See more.

Not really

Bulgarian Shepherd Dog breed usually doesn't like being on a boat.
See more.
Cart Pulling or Drafting Dog
Which one could be a cart pulling or drafting dog?

Yes

A drafting dog or draft dog is a dog bred and used for cart pulling.
See more.

Not really

A drafting dog or draft dog is a dog bred and used for cart pulling.
See more.

Not really

A drafting dog or draft dog is a dog bred and used for cart pulling.
See more.
Fighting Dog / Military Dog

Not really

In history, this breed was not really used for combat dog.

Not really

In history, this breed was not really used for combat dog.

Not really

In history, this breed was not really used for combat dog.

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Reproducibility Comparison

Gestation Length 60-64 days See more. 60-64 days See more. 60-64 days See more.
Litter Frequency

Once a year.

More frequent breeding is not healthy.
See more.

Once a year.

More frequent breeding is not healthy.
See more.

Once a year.

More frequent breeding is not healthy.
See more.
Litter Size
How many puppies can American Mastiff and Black Russian Terrier and Bulgarian Shepherd Dog have?
2-5 puppies 6-12 puppies 5-10 puppies

American Mastiff vs Black Russian Terrier vs Bulgarian Shepherd Dog Recognition Comparison

AKC Group
Which dog is recognized by the AKC?
Not recognized by the American Kennel Club. Recognized by the American Kennel Club in 2004 as a Working breed. Not recognized by the American Kennel Club.
FCI Group
Which dog is recognized by the FCI?
Not recognized by FCI. Recognized by FCI in the Pinscher and Schnauzer - Molossoid and Swiss Mountain and Cattledogs group, in the Pinscher and Schnauzer type section. Not recognized by FCI.
Breed Recognition
What other organizations and kennel clubs recognize these dog breeds?
No data available American Canine Registry
American Kennel Club
America's Pet Registry
Dog Registry of America Inc.
Federation Cynologique Internationale
North American Purebred Registry, Inc.
American Canine Association, Inc.
Australian National Kennel Council
Continental Kennel Club
National Kennel Club
No data available

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