Unfortunately, the Irish Mastiff is not hypoallergenic, making it not a good choice for a dog lover who suffers from pet allergies.

While no dogs are truly 100% hypoallergenic, Biewer Terriers are about as close as it gets, making them an ideal pet if you are an allergy sufferer.

Dignified
Protective
Alert
Courageous
Intelligent
Affectionate
Patient
Loyal
Tempered
Sweet
Cheerful
Generous
Thoughtful

Friendly
Playful
Energetic
Intelligent
Stubborn

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

Biewer Terriers shed very little hair, making them a great choice for those who dislike excess hair in the house.

United States

Germany

Mastiff and Irish Wolfhound

Yorkshire Terrrier

ACHC = American Canine Hybrid Club
DDKC = Designer Dogs Kennel Club
DRA = Dog Registry of America, Inc.
IDCR = International Designer Canine Registry®

United Kennel Club

Unknown

1980

Brown

Brown

Black

Black
Brown

Black
Blue
Brindle
Cream
Gray
Red
Silver

Cream
Blue
Brown
White
Black

Irish Mastiffs have coats that can be either short or medium in length.

Biewer Terriers have longer coats compared to most dogs.

Wiry

Straight

An Irish Mastiff can have a litter of 3-5 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 Biewer Terrier can have a litter of 12-15 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.

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

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

The Irish 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.

Biewer Terriers typically have low vet costs due to their good health, but it's important to monitor their health and seek vet care when necessary.

Hip And Elbow Dysplasia
Bloat
Heart Conditions

Portosystemic Shunt

Osteosarcoma
Wobbler's Syndrome
Eye Diseases and Disorders

Patellar Luxation

Eye Examination
Biopsy
X-ray imaging
Electrocardiogram

Knee
Liver Ultrasound
X-Rays
Bile Acids

Irish Mastiffs are a good choice for a low-key lifestyle due to their low energy levels.

Biewer Terriers thrive on an active lifestyle due to their high-energy nature.

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

Biewer Terriers need moderate physical activity and are great for families and active individuals.

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

Biewer Terriers are active and require sufficient sleep to stay healthy.

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

Biewer Terriers bark moderately when necessary and may also bark due to certain triggers like fear, alarm, boredom, greeting, separation anxiety and compulsive barking.

Playdate, Tracking, Tug-of-war, Fetch, Swim, Run, Walks, Lure coursing, Hikes, Swimming

Playdate, Training, Walks, Tug-O-War, Walking, Watching tv, Tug-of-war, Chasing, Ball Catching, Running, Tossing toys, Napping, Belly rubs, Cuddling, Eating

Irish 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.

Biewer Terriers are low-energy dogs. This breed make a great companion for a relatively inactive person. Biewer Terrier dogs require a few short daily walks, and then they're happy snuggling next to you for the rest of the day.

There's really no limit to how far you walk your dog as long as they're comfortable. For Irish Mastiff, it's at least 8 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 Biewer Terrier, it's at least 3 miles / week. Just remember to build distance and stamina gradually over time.

In general most Irish Mastiffs 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 Biewer Terriers usually need at least 30 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 Irish Mastiff requires an average amount of grooming compared to other breeds.

The Biewer Terrier has low grooming needs and is easy to maintain.

Ideally, Irish Mastiff should be brushed at least 2 or 3 times a week (preferably daily) improve shedding.

Biewer Terrier should be brushed at least once a week. Of course you can give them more frequent brushes if you find that they are still shedding a lot

Slicker Brush
Comb
Deshedder
Nail Clipper

Pin Brush
Clipper
Nail Clipper

For an average 120-180 pound (54 - 82 kg) Irish Mastiff feed 4 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 4-8 pound (2 - 4 kg) Biewer Terrier 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 an Irish Mastiff is somewhere $3.90 - $4.20 per day.

The average cost of a Biewer Terrier is somewhere $1.10 - $1.40 per day.

The average per month expenses of an Irish Mastiff is between $112 - $126. This makes an average of $1344 - $1512 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 Biewer Terrier 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.

Irish Mastiff has below average obedience intelligence, but they excel in understanding human emotions.

Biewer Terrier is a very intelligent and trainable breed.

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

Biewer Terriers make excellent apartment dogs, being fairly active indoors and not requiring a yard.

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

Biewer Terriers are good with kids if socialized and trained from a young age.

Irish Mastiffs are good with cats, but early training is needed to prevent chasing behavior.

Biewer Terriers are not cat friendly.

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

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

Irish Mastiffs have an average level of playfulness, enjoying playtime like most dogs but not excessively so.

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