Tosa vs Greater Swiss Mountain Dog - Breed Comparison

Known also as the Japanese Mastiff, the Tosa hails from Japan. In fact, these dogs come from the Tosa Province, so the dog was named after the region where they were bred.

It is why they are sometimes referred to as Japanese Mastiffs. The Tosa is a rare dog breed and unfortunately, the dog is still used in Japan for dogfighting.

Thought to be a dangerous dog breed, it is restricted in some countries.

The breed was developed in the 2nd half of the 19th century, with a number of dog breeds being involved to bring about a more powerful, braver dog.

Hailing from Switzerland, and one of its oldest dog breeds, the Greater Swiss Mountain Dog has a dubious history in that there are a number of theories as to its origin. He is closely related to the Bernese Mountain Dog, Saint Bernard and Rottweiler.

Of all the theories, the one that says he is descended from large, mastiff-like dogs is a popular one. He used to be a herding- and guard dog, but also was used to pull carts of farm produce.

It was in the 1900s that the dog’s numbers started dwindling. In 1908, canine researcher, Albert Heim recognized the dogs as being large members of the Sennenhund type, a family of four breeds that includes the Greater Swiss Mountain Dog.

He wanted to see the dogs recognized as a separate breed and the Swiss Kennel Club listed the Greater Swiss Mountain Dog in 1909.

In 1968 they were brought to the United States and a club for them was formed. The dog was recognized by the American Kennel Club in 1995 with the dog being recognized as a member of the Working group.

The Tosa is a large dog, but their sizes vary, and in fact, because of their fighting, they are actually divided into light-, middleweight and heavyweight classes.

Generally, you can say that these dogs weigh in the region of 54 to 90kg and they stand in height at between 62 to 82cm. The head is large, the jaws powerful, the eyes dark brown in color, the ears small, high set and floppy.

The neck is broad wit a dewlap and the tail is long, thick and tapering to a point. The coat is short and thick and is most times a rich caramel color, fawn tan, black or brindle. The dog often has a black mask.

Temperament:

The Tosa is a fairly quiet dog, courageous and fearless. He is going to need a strong, consistent owner who shows leadership with him. Training and socialization will be imperative for this dog.

When he has been properly reared and trained, he makes a good pet, able to get on with members of the family. He takes his role as protector and guardian seriously.

Swissies, as they are often referred to as, are large, robust dogs, standing at 65–72cm and weighing anything between 50 – 70kg, with the females being slightly smaller and weighing a little less.

He has big, rounded paws, medium length floppy ears, a broad chest and a long tail. This is a heavy-boned dog, strong while still being agile.

His dense, double coat is black, white and tan or rust, with black on top of the dog's back, ears, tail and legs. There are two rust dots above each eye. The coat can be short and straight to medium length, coarse and wavy. The dog sheds throughout the year with a major shedding a couple of times a year.

Temperament:

The Greater Swiss Mountain Dog is a sociable canine, thriving on being part of a loving human family. While he used to be a working farm dog, today he is essentially a family pet, though he loves to still be busy.

He is generally friendly with strangers, but just like with all other dog breeds, he will need to be trained and socialized to turn him into an even-tempered, obedient dog, capable of getting on well with children and pets in the the home.

The Tosa isn’t recommended for first-time dog owners, as in the wrong hands, they can become aggressive. Care has to be taken around children too especially undisciplined ones.

He also doesn't come as recommended for small, cramped homes in the city. He’s just too big and he will need to get out and be walked often.

You want to create a home for him that ensures he is the calm, gentle dog he is capable of being, If you’re fair, firm, caring, patient and consistent, then this big dog might be for you. With the right care he becomes a gentle, devoted pet.

The Swissy is an easy going dog and adapts easily into his human family’s lifestyle. He is big, but agile dog known for his gentle temperament.

While he loves the outdoors, he is a social dog and loves nothing more than coming indoors and being close to his human family.

He loves his family and won’t do well if left outside for days without human companionship. Treat him well and you’ll be rewarded with a loyal, loving 4-legged family member.

The Tosa is a formidable looking molossoid, but even so, this big, calm dog can succumb to illness. Some of these diseases you need to be looking out for include bloat,hip dyslasia and eye conditions.

Bloat for this dog can be life-threatening, and can often be because the dog is too hungry and he gobbles up his food quickly. Bloat is when gas can't escape, the stomach swells and twists – very dangerous. Rather give your dog two smaller meals – one in the morning and one in the evening, or even give several smaller portions throughout the day.

To help with eliminating health issues always choose a reputable Tosa breeder. You’re not likely to find one of these dogs in a dog shelter.

The GSMD or Sennenhund, as his name is shortened to, is a fairly healthy dog breed, with very few health issues.

He has an average lifespan of 10 to 12 years, and although not likely, he can suffer from minor problems such as gastric torsion as well as female urinary incontinence. If your female dog is dribbling urine in her sleep, there are a number of reasons that can be causing it - bladder infections, a medical condition or a weakened bladder with spayed female dogs.

It is certainly time to get your pet to the vet who will recommend a urinalysis.

Diet:

These large, strong dogs do well on good quality food. If you opt to buy him commercially manufactured food, make sure it is the top quality one free of unwholesome ingredients such as preservatives, colorants and useless fillers.

Invest in the best quality ones that have nutritious minerals and vitamins. Try and give your dog some home-prepared food too – boiled chicken, brown rice or pasta, spinach, sweet-potatoes and carrots.

Never feed your dog things such as chocolates, peanuts, crisps, grapes, onion and food with spicy flavorings. This will just ensure digestive problems and having to get your dog to the vet.

Cool, fresh water should be available at all times.

Grooming:

The Tosa’s short coat isn’t going to require too much attention. A good brush twice a week will keep it free from loose hair and keep its shine and gleam. It’s why the dog is looked upon as being low maintenance.

Beyond that, he will need to have his nails trimmed. When brushing him, check him over for parasites – ticks and fleas, check for unusual lumps and look inside his ears for signs of redness.

Exercise:

These dogs are calm and fairly low-energy. Nonetheless, to maintain good health, he will need to be exercised. Ball games outside are always a good idea as well as nice long walks. Hikes into the countryside will be wonderful for this big dog.

Diet:

The Greater Swiss Mountain Dog is a robust dog and thrives on a diet of kibble to raw meat to some cooked home-made food such as chicken, brown rice and vegetables.

A serious issue with the GSMD is overfeeding, resulting in uncomfortable digestive problems and of course, obesity.

Exercise:

Your GSMD isn’t a dog that is going to require a lot of exercise like some of the other dog breeds there are, but still his working career of the past requires that he still be taken on daily walks, enjoys ball- and rope games and to go swimming.

Grooming:

Brush your dogs coat at least twice a week to remove loose hears. Other grooming aspects include cleaning the ears to avoid infection, clipping his nails and brushing his teeth at least twice a week.

If you’re not sure how to do all these things, there are useful accessories for dogs that allow you to do all this grooming on your own. Your vet can also show you how as these are all things that will require ongoing attention.