The American Mastiff – History and Owners Guide

american mastiff

If you are brand-new to learning all about Mastiffs, it is puzzling – all the various kinds of purebred Mastiffs.

For this article, we will concentrate on American Mastiffs, a comparatively new kind of Mastiff.

American Mastiffs – Is there any space in your life to own this colossal breed?

American Mastiffs are a giant yet incredibly gentle and adorable purebred dog breed with an extraordinarily ancient pedigree.

Fun Statistics On American Mastiffs

Here are a few fun statistics assembled by American Mastiff breeders and their owners!

The American Mastiff is often called the AM Mastiff or the AmMas for short.

  • Distinct from their English cousins, these dogs have amazingly dry mouths!
  • Breeders report they don’t drool unless they’re offered a genuinely delicious treat or if they smell something enticing.
  • American Mastiffs are passionate and are messy when drinking.

American Mastiff’s Appearance

American Mastiffs are tall, burly, muscular, wide-chested, broad-shouldered, and have robust, solid legs.

Anticipate your mature dog to weigh between 140 and over 200 pounds. A thoroughly grown-up American Mastiff stands between 28 and 36 inches tall.

Also, the color of these dogs’ coats ranges from a cream hue to fawn and from apricot to a brindle-type pattern.

The texture of their coats is short, and thick, with a double coat, and the color of their eyes ranges from light amber to dark brown.

The breed standard for American Mastiffs indicates that the muzzle ought to be darker than the surrounding coat.

Additionally, the nose ought to be dark—described as a “black mask.”

The temperament of American Mastiffs

American Mastiffs are a comparatively young, modern-day-blooded dog. They’re exceptional with kids—gentle, patient, and protective—as stipulated in their breed standard.

These pups were produced to be “indoor dogs” along with being family companions. The owners and breeders frequently define American Mastiffs as desiring to devote time to their families.

When these dogs are well-bred, well-trained, and properly socialized, they will be highly devoted to their people and particularly conscientious of the youngest members of their family.

These dogs are usually aloof with outsiders, so an American Mastiff might make a valuable watchdog—although not an excellent guard dog.

Breeders warn against selecting an American Mastiff for a guard dog since this breed has a sensitive nature along with a deep-rooted desire to be with people.

Training American Mastiffs

It’s a genuine joy to share your house and your life with an American Mastiff that’s well-trained, properly socialized and well-behaved.

Nevertheless, it would help if you remembered a few things. First, the American Mastiff pup doesn’t understand its size or strength, which never changes even after being mature.

Consequently, training is essential if you’re bringing one into your house and you’ve got little kids.

These dogs might be very gentle and patient, although one swipe of their gigantic, broad tail can send a little kid flying through the apartment.

Crate training tends to be very valuable when it comes to housebreaking as well as obedience lessons.

American Mastiffs have to be taught to walk respectfully on a leash, as well as they must be socialized from the start.

If not, these dogs are capable of taking someone on the run as soon as they notice something like a squirrel!

You might ponder how an American Mastiff might act whenever people are visiting you. This is an additional topic where it’s vital to do early, continuous positive training coupled with proper socialization.

Their sensitive, clever nature means these dogs will look to their owners for cues on how to act when with people they do not know.

You ought to teach your pup the difference between possible dangers and new friends.

Just gazing at an American Mastiff, one could believe this huge dog could require lots of exercise every day.

However, they are a low to medium-energy dog who fares quite well on two walks a day.

Until they are mature and your vet has confirmed all their joints are done growing, watch out as you can exercise them too much.

Now we are going to cover possible health issues.

Life Expectancy and Health Worries of the American Mastiff

American Mastiffs have a lifespan of between 11 and 13 years.

Though, the official breed standard of the American Mastiff says these dogs have a lifespan of between 10 and 12 years.

Too much exercise, when they are puppies, can cause health problems which last their whole lives.

After the vet says it is okay, these dogs can go on a walk or hike that’s rougher or perhaps go swimming.

But don’t allow them to leap around on your furniture or to run. That will assist in ensuring you protect their growing joints.

While American Mastiffs aren’t categorized as a genuine brachycephalic (flat-faced) breed of dog, their official breed standard indicates they have a “slightly brachycephalic” kind of skull.

Speak with your veterinarian if you must take any special precautions required for brachycephalic dog breeds.

These may be susceptible to getting overheated or having problems with their eyes, teeth, or respiratory system.

Where Do American Mastiffs Come From?

American Mastiffs began in Piketon, Ohio, in the US. The initial breeder is still operating Flying W Farms, which is where the earliest American Mastiffs were born and raised.

The original American Mastiffs came from a blend of English Mastiffs and Anatolian Mastiffs.

Anatolian Mastiffs, sometimes additionally dubbed Anatolian Shepherds or Turkish Mastiffs, are ancient guarding and livestock herding dogs.

In 2000, American Mastiffs first got registered with the Continental Kennel Club (CKC).

Since that time, only pups born via a mix of two CKC-registered American Mastiffs are deemed to be pure-blooded American Mastiffs.

These days, other kennels additionally breed pure-blooded American Mastiffs. However, all genuine American Mastiff kennels use pure-blooded parent dogs purchased from Flying W Farms.

“Parents “of the American Mastiff

Since American Mastiffs are still a very young dog breed, there is only limited data regarding their health.

In this regard,  studying the history of the parent dogs is frequently the most significant way to evaluate possible health problems.

For American Mastiffs, this means English Mastiffs and Anatolian (Turkish) Mastiffs.

English Mastiffs

English Mastiffs are considered to be a genuine brachycephalic (flat-faced) breed of dog.

That means English Mastiffs have shortened muzzles that may trigger their teeth to crowd and their eyes to tear or get infected, trigger respiratory and chewing problems, or additional problems.

The Canine Health Information Center additionally advises the subsequent health tests for all kinds of Mastiff dogs, to include:

  • Elbow and hip and dysplasia screening
  • Cardiac and eye tests
  • Autoimmune thyroiditis (optional)
  • Cystinuria (optional)

Anatolian (Turkish) Mastiffs

At times additionally dubbed Anatolian Shepherds, Turkish Mastiffs don’t have brachycephalic muzzles.

Like some other giant breeds of dogs, the CHIC advises testing them for elbow and hip dysplasia.

Additional Grooming and Care Requirements

These dogs’ breed standard shows the American Mastiff sheds moderately all year.

This breed has a relatively self-supporting coat except for needing to be brushed weekly and given a bath once in a while.

Are American Mastiffs Good Family Dogs?

The American Mastiff Breeders Council, CKC-registered American Mastiff dog breeders, say they are committed to putting pups into loving homes.

These puppies should be welcomed to live inside with their family people and participate in all facets of family living.

Breeders advise allowing American Mastiffs to sleep in a dog bed near you straight from puppyhood.

They have a strong desire to be with their owners as much as they can.

For the exact reason, though, breeders warn against allowing your doting and insecure puppy from sharing the bed with you. Or else when he becomes an adult, you won’t have room in the bed for yourself!

Finding an American Mastiff

If you’re interested in getting one of these giant dogs, there are several options for you

Rescuing American Mastiffs

Whenever you decide to rescue a dog, you’ll most likely add a mature dog to the family instead of a pup. That may have a few benefits including skipping over potty training and teething stages!

Additionally, rehoming fees usually are lower than the average price tag to buy a pure-blooded dog at a breeder’s home.

Finding American Mastiff puppies

When this was written, there were only eleven American Mastiff Breeders Council (AMBC) breeders listed.

Raising American Mastiff Puppies

Crate training is particularly crucial for giant breeds such as American Mastiffs.

The Happy Puppy Guide has all that’s needed to know about raising happy and healthy American Mastiff pups. You may additionally wish to read some books on the development stages of puppies.

Products and Accessories for American Mastiffs

As you may suspect already, sharing your home with a giant dog breed such as the American Mastiff likewise means you have to supersize all the things the new puppy needs!

That includes leashes, collars, beds, blankets, treats, food, toys, water and food dishes, grooming gear, brushes, and many other things.

If you’re not committed to owning an American Mastiff yet, it is worth assessing your house and vehicle to decide if you have enough space or not. It is vital to be sure a dog that could weigh up to 200 or more pounds fits!

Advantages and Disadvantages of Owning American Mastiffs


  • These dogs are gentle as well patient with kids, and loving with their families.
  • You’ll get an excellent watchdog (although they are not guard dogs).
  • Getting unconditional dog love every day is guaranteed.


  • Raising giant dog breeds may cost more money.
  • You’ll have to have enough room for a large bed, crate, and more.
  • Giant dog breeds may knock little kids over even if accidentally and hurt them.
  • The larger the pup, the shorter the timeframe they live.
  • A bigger dog may mean more shedding and dog hairs to clean up!
  • The slightly brachycephalic muzzle shape could cause a few health problems.


You will only need to give them moderate exercise every day, and they will remain pleased with that.

No fancy grooming requirements.

They are easily trained if you use a positive kind of training method.