Mastador Dog Breed: A Hybrid of Loyalty and Strength


Last Updated on September 26, 2023 by Fumipets

Mastador Dog Breed: A Hybrid of Loyalty and Strength


The Mastador is a hybrid dog breed resulting from the crossbreeding of two purebred dogs: the Labrador Retriever and the Mastiff. This mixed breed combines the friendly and affectionate nature of the Labrador Retriever with the protective and formidable qualities of the Mastiff. 

  • Origin: The Mastador is not a purebred dog but rather a crossbreed. It inherits traits from both the Labrador Retriever and Mastiff.

  • Temperament: Mastadors are known for their friendly and loyal temperament. They are often described as great family dogs due to their protective nature and love for their owners.

  • Size: These dogs are typically large in size, given the Mastiff heritage. They are strong and sturdy animals.

  • Purpose: While the Labrador Retriever was originally bred for retrieving waterfowl, and the Mastiff for protection, Mastadors can excel in various roles, including as family pets, companions, and even working dogs.

  • Appearance: Mastadors may have a variety of coat colors and patterns, and their appearance can vary, but they often have a muscular build.

  • Maintenance: They require regular exercise and grooming to keep them healthy and happy.

Now, let’s explore some common questions about the Mastador dog breed.

Mastador Dog Breed

A Bullmastiff and a Labrador Retriever were crossed to create the unusual dog breed known as the Mastador. This specific breed has only been existing for around 30 years, but since both the Bullmastiff and Labrador are well-liked dogs in America, it is believed to have its roots there.

Let’s be clear, though: Mastadors are by no means little dogs. This is not the dog for you if you’re seeking a lap dog that will fit in your little apartment. Yet these dogs are ideal if you want a large, devoted, and loyal dog that will serve and guard your family.

Breed Overview

Height: 28–36 inches

Weight: 100–160 pounds

Lifespan: 8–14 years

Colors: Brown, black, yellow, brindle

Suitable for: Families looking for a guard dog, families with a big yard

Temperament: Protective, courageous, loyal, social, great with children

Mastadors are gentle giants despite their frightening size as long as they are under the care of a loving family. They have a reserved personality, yet when it comes to their family, they are very friendly dogs. As a result, they make excellent watchdogs that typically only bark when necessary.

As they are a crossbreed, each Mastador’s personality is unique depending on the characteristics they acquired from their Labrador or Bullmastiff parents. We’ll cover all you need to know if you’re thinking about getting one of these amazing dogs in this post.

Mastador Puppies

There is no way to predict what you will get when purchasing a Mastador puppy. One of the enjoyable aspects of these dogs is that. As they mature, you get to learn more about their personality. Yet because of this, it’s crucial to approach the situation with an open mind and no preconceived notions about the kind of dog you desire.

Bullmastiffs and Labradors have quite distinct personalities, which is why we say this. Bullmastiffs are kind, courageous, and devoted dogs. Labradors are energetic, sociable, and outgoing dogs. Any combination of these qualities might be present in a Mastador puppy that you purchase. You can get a general sense of your puppy’s personality by watching how they interact with the other pups in the litter, but you may not see their entire personality until they are a little older.

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The color of Mastador pups may also vary greatly. Often, colors include blonde, brown, black, or a mix of those. They often inherit the Labrador parent’s color, however this isn’t always the case. Puppies that resemble the parent Bullmastiff may be red, fawn, or brindle in color.

Temperament & Intelligence of the Mastador

Given that they are the offspring of two very different dog breeds, it may be difficult to describe a Mastador’s disposition, particularly if you don’t have the chance to meet the parent animals. That’s still another strong reason to purchase from a trustworthy breeder. There’s a good chance that you’ll get to meet the parents in addition to your puppy.

We may still compare the general temperaments of the two dog breeds, Bullmastiff and Labrador Retriever, even if you don’t get to meet the parents. Again, there is no assurance as to the characteristics your Mastador will acquire, but at least by reading about these qualities and temperaments you may have a basic notion of some of the characteristics you could see in an attempt to understand more about these intriguing dogs.

Let’s start by examining the similarities between Labradors and Bullmastiffs. Because both of your Mastador’s parents have these temperaments, you should expect to see them in your Mastador most often. To begin with, both dogs are quite loving with their owners’ families. Bullmastiffs are somewhat more loving than Labradors, but when you mix the two, it becomes clear why these dogs want to be with you all the time.

Mastadors can be trained very well, much as Labradors and Bullmastiffs can. Moreover, you’ll discover that your Mastador doesn’t seem to bark excessively. They are often fairly reserved canines that choose other forms of socialization. Yet, since their parents are both excellent watchdogs and guardians, Mastadors will bark to let you know if anything is wrong if necessary.

Let’s now examine how Labradors and Bullmastiffs vary from each other. Depending on how strongly one parent’s qualities predominate over the other’s, you may or might not see these temperaments in your Mastador. Conversely, your Mastador may have a temperament that straddles the characteristics of both parents.

The fact that Labradors are regarded as sports dogs while Bullmastiffs are regarded as working dogs may account for the majority of the temperamental differences between the two breeds. As a consequence, Labradors are often more energetic and active, while Bullmastiffs sometimes simply want to relax and be lazy. Mastadors often have a disposition that is alternately lively and calm as a consequence of this.

Lastly, whereas Bullmastiffs are more cautious and reserved, Labrador Retrievers are far more gregarious and sociable. Another place where your Mastador’s personality might go either way is in this one. Mastadors, however, often err on the side of caution when dealing with outsiders.

Are These Dogs Good for Families?

You don’t need to be concerned about Mastadors getting along with other family members. Family-friendly canines come in both parent breeds. Mastadors are happier and more content the more people there are to adore them. They see this as having more folks to cuddle up with on the sofa.

You must consider this if you have young children. Both Labradors and Bullmastiffs in general get along well with children. Yet, when they are completely grown, these canines may get rather huge, and young children could find them threatening.

Mastadors are by no means dangerous dogs, but it is conceivable that they may accidentally knock a youngster down out of pure exuberance rather than malicious intent. You should be able to avoid incidents like that with the right supervision and training.

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Does This Breed Get Along with Other Pets?

Mastadors get along well with other canines. They perceive them as just another plaything or interaction opportunity for them. If you do own dogs of other breeds, the relationship between your other dogs and a Mastador should be far more of a worry than the other way around.

Mastadors often don’t have issues with other dogs, but you should keep an eye on them around smaller animals. If your Mastador has any characteristics of the Labrador breed, which are sport dogs raised to hunt, he can see small animals like hamsters, guinea pigs, rabbits, or even cats as prey.

Things to Know When Owning a Mastador

Food & Diet Requirements

Mastadors do not need a specific day, although they are prone to weight gain. Their reduced levels of activity and the Bullmastiff in them are to blame for this. You must use caution to avoid overfeeding them. When you do give them food, make sure it is high-quality dog food that is low in fat and rich in protein. This will assist in maintaining their weight and lean muscles.

You should only feed them food designed for big adult dogs. For instructions on how much to feed them, go to the list on the back of the package. This sum is often determined by the dog’s weight and age.


Mastadors aren’t the most lively dogs, but they still need to be active every day to keep their weight in check. Even if they may choose to simply stay home and relax, spending the whole day inside is bad for them. These dogs need a large yard, ideally one that is fenced in for safety, where they can exercise and perfect their watchdog talents. They cannot survive in tiny apartments.

Your Mastador may not be interested in fetch, but he will love taking long walks. This is one of the finest exercises you can offer them, and in certain cases, they may need many walks daily to satisfy their activity requirements. He could also take pleasure in visiting the dog park to play with other canines and run about.


Mastadors are very trainable canines, much as Labradors and Bullmastiffs are. They may not instantly take to instruction and they may not be eager to learn. Nonetheless, since they are a hybrid of working and athletic dogs, they respond to directions quickly and eagerly.

Mastadors must be praised and given treats while being trained to obey directions. Your dog will be inspired by this. Due to their sensitivity, they may shut down and stop responding to instructions if you chastise them or use harsh language. You may always ask a professional dog trainer for guidance or assistance if you’re uncomfortable teaching your dog or your techniques seem to be failing.


Mastadors shed a lot despite having short hair. If they remain indoors, you may need to brush their coat every day to get rid of some of the loose hair if you don’t want your clothes to be covered in dog hair. They don’t need to be washed as regularly since they don’t become as filthy or tangled as often as long-haired canines. The average dog only needs one wash per month to be clean, but you may always bathe them more regularly to try to reduce shedding.

Health and Conditions

Mastadors’ lack of purebred status is one of its advantages. As a result of their more varied pedigree, they are thus less prone to a wide range of hereditary diseases. They may, however, be prone to some of the health issues that plague Bullmastiffs and Labradors alike.

Bloat is among the most significant health issues that Mastadors may have. When your dog’s stomach is overfilled with food, liquid, or gas, this illness develops. This puts strain on his internal organs and may even prevent blood from reaching his heart, leading to a ruptured stomach.

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This illness is risky and potentially fatal. Drooling, restlessness, and a large stomach are all signs of bloat. (Excessive drooling might be a warning indication that something is amiss since mastadors don’t drool much.) If your dog exhibits any of these symptoms or you have any reason to believe that anything is wrong with them, you should take them to the doctor as soon as possible.

Skin sensitivity is a minor health issue that Mastadors experience more than other dogs (atopic dermatitis). It resembles human eczema in appearance. This is a typical Bullmastiff ailment that often passes down to the puppies.

Mastadors don’t sneeze as people do when they have allergies. Instead, they get bumps, flakiness, or itchy skin. It just results in pain, severe itching, scratching, and redness, not any serious health issues. This ailment may be identified by your veterinarian, who can also provide care that can assist to reduce any pain.

Minor Conditions


Ear infections

Eye infections

Skin conditions/sensitivity

Serious Conditions



Elbow dysplasia


Heart disease

Hip dysplasia


Male vs Female

The differences between Mastadors who are male and female are minimal. The main difference is in size, as males may sometimes grow to be somewhat larger and heavier than females. The final decision about your gender preference is up to you, however there are a few factors you should take into account.

The possibility of pregnancy in female Mastadors should be one of your main priorities. Getting your dog spayed if you don’t want to breed her will help avoid any unwanted babies as well as several forms of cancer.

Male dogs often prefer to mark their territory more in an attempt to keep out other male dogs, while male Mastadors aren’t always more violent than females. Your male Mastador may attempt to mate with other female canines you have if you have any. These and other unpleasant behavior may be reduced by having your male dog neutered. Moreover, neutering may aid in the prevention of several cancers in dogs, just as it does in females.

3 Little-Known Facts About the Mastador

1. Mastadors Can Be Wary of Strangers

Mastadors may be a little more reserved and distant around strangers, despite their love and devotion for their family. They are devoted to their family and wish to defend them, not because they are afraid of outsiders.

2. Puppies Are Energetic, But Mellow as They Turn Into Adults

Do you recall how we said that until a Mastador reached maturity, you can never fully understand its personality? Mastadors are highly active as pups, but as they become older, they become great couch potatoes.

3. They Sometimes Forget How Big They Are

These dogs continually seek out their owners due to their loving and protective attitude. Even though they are twice as big as you, they have no problem lying on you and climbing up onto your lap. Mastadors are excellent sleeping companions if you live alone, but because of their large size, you may have to restrict their use if you share a bed with someone else.


Mastadors are devoted, loving, and protective canines. They share some of the greatest traits of their Labrador Retriever and Bullmastiff parents. It’s crucial to have enough room for them and a large yard for them to run about in if you’re thinking of obtaining one of these adorable canines. These kind giants will provide your family with a lifetime of companionship and protection.

Questions and Answers 



What Is the Typical Size of a Mastador?

Mastadors are typically large dogs, with males weighing between 100 to 160 pounds (45 to 73 kg) and females weighing between 80 to 120 pounds (36 to 54 kg).


Are Mastadors Good Family Dogs?

Yes, Mastadors are known for their friendly and protective nature, making them excellent family dogs.

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Do Mastadors Require a Lot of Exercise?

Yes, like their Labrador Retriever ancestors, Mastadors need regular exercise to stay healthy and happy. Daily walks and playtime are essential.

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Are Mastadors Easy to Train?

Generally, yes. They are intelligent and eager to please, which makes them trainable. However, early socialization and consistent training are important.


What Is the Life Expectancy of a Mastador?

The life expectancy of a Mastador typically ranges from 8 to 12 years, depending on factors like genetics and overall care.

These questions and answers provide insights into the Mastador dog breed, its characteristics, and suitability as a pet.



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