Tosa vs Parson Russell Terrier - 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.

The Parson Russell Terrier hails from England and is a small to medium sized dog dating back to the 18th century. It is believed that Reverend John ‘Jack’ Russell was the developer of this dog. The Parson has always been involved with England’s sport of foxhunting.

They’re spritely and quick and have been able to keep up on a hunt and take on a fox in its lair. The dog was first recognized in 1990 in the United Kingdom as the Parson Jack Russell Terrier and in America in 1997.

All the top kennel clubs recognize this dog as the Parson Jack Russell Terrier.

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.

The Parson Jack Russell is essentially a white dog with black and tan or orange-fawn patches. He can be tri-colored too. The coat is either smooth, rough or broken.

He stands at between 33–36cm tall at the withers and weighs between 5 and 8kg. Unlike the Jack Russell, the Parson Russell Terrier has longer legs. He has some longer hair on the head, legs and body. The ears are floppy wit the tip pointed forward. The tail has always been docked but when left long it it held high, slightly curving over the back.

Temperament:

Feisty, brave, cheeky and alert, the Parson Russell Terrier is an energetic dog who gets on well with children as he knows that this is essentially where his games come from.

He is bold and clever and you’ll be able to have him trained and socialized without any trouble. These little dogs are full of life and they are protective of their humans and their property, making excellent watchdogs.

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.

In general the Parson is a friendly,loving dog, fairly small but packed full of feisty personality.

They make excellent pets for the entire family. He is an intelligent dog, but typical of most terriers he can be stubborn, but this can easily be fixed with training and socialization. With good care, he’ll make you a wonderful little pet and companion.

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.

Your Parson Jack Russell can live to be between 12 and 15 years but nonetheless he does have some breed-related health issues to watch for.

Eye Disorders:

Eye conditions which can affect this dog include primary lens luxation,cataracts, corneal dystrophy and progressive retinal atrophy. With cataracts the lens of the eye develops a cloudy look resulting in poorer vision and sometimes blindness. Cataract surgery is available for dogs.

Obesity:

Your Parson Jack Russel should be lean and muscular and always full of energy. Avoid feeding him unhealthy treats which can lead to obesity and other health problems.

Parasites:

All kinds of parasites such as ticks, fleas and worms can invade your dog’s body. Roundworms, hookworms and tapeworms can cause havoc with their health and some of these parasites can even be transmitted to humans. It’s why it is important to get your puppy to the vet to be de-wormed and to get his first injections.

Liver Problems:

A liver disorder known as portosystemic shunt can mean that some of the blood supply doesn’t get to the liver and it doesn’t function properly. This will mean the liver can’t remove toxins from the bloodstream effectively.

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.

The Parson Russell Terrier has different coat types – the smooth and rough and both will require regular brushing. Rough coats will require plucking or clipping to avoid matting.

Check his eyes and ears regularly. Look inside his ears for excess wax and dirt which could lead to an ear infection. His nails should also be trimmed.

No Puppies – Spay or Neuter:

The best thing you can do for your Parson Russell Terrier if you don’t want your pet producing puppies is to have it spayed or neutered. Spaying for females or neutering for males decreases the likelihood of certain types of cancers too so it can be beneficial.

Diet:

Diet is hugely important for a Parson Russell Terrier and the food you decide for him can impact his health. Many time those ‘treats’ you feed your pet do nothing more but give him a stomach ache.

It's tempting to pop chocolates, popcorn, nuts and ice cream into your pets mouth when he is so adorable but in the long run it is shortening his life. All he basically requires and needs is a simple, consistent diet of the top commercially manufactured foods mixed with some tasty home made food from time to time.

Boiled chicken, brown rice and vegetables such as sweet potatoes, carrots and spinach will do your pet wonders. Ensure he always has fresh, cool water available to him.