Thai Ridgeback vs Tosa - Breed Comparison | Petzlover

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.

Until recently the Thai Ridgeback was not known outside of its native land. However, after being recently recognized as a standard breed, the dogs are getting some notice from the western world. They are one of three known ridgeback breeds with the ridge running the opposite direction of the rest of her fur. The other breeds with this characteristic are the better known Rhodesian Ridgeback and the even lesser known Phu Quoc Ridgeback.

The Thai Ridgeback is believed to have originated in eastern Thailand but there is no documentation of their actual history. The breed is thought to be descended from the Funan Ridgeback based on a genetic hypothesis. It is thought that the same Funan Ridgeback is an ancestor od the Phu Quoc Dog. This Funan Ridgeback lived over a century ago. Along with the Rhodesian Ridgeback, all have a common ridgebearing ancestor.

It is still unknown where the original ridge came from but it has been shown that all of the ridgeback dogs have the same genetic mutation and even though the Rhodisian is from Africa, there is not a parallel mutation. The Thai Ridgeback is an active, energetic, tough dog. He is loyal, intelligent, and has great jumping ability.

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 breed is medium in size and muscular in body. They have a wedge shaped head, a short coat that is smooth and pricked, triangular ears. The ridge on his back is pronounced as the hair grows away from the rest of the coat from the hips to the withers. Puppies can be born with or without the ridge. They are extremely agile. With what is often called a sword tail being carried up, the Ridgeback has wrinkles on his forehead, a black tongue or the tongue has black marks, and almond shaped eyes.

The coat sheds minimally and is dense, while the eyes are usually brown – in blue dogs they can be amber. The color of the coat is fawn, red, black or blue with a black mask on the reds. There are 8 different ridge patterns: Feather, violin, saddleback, needle, arrow, bowling pin, lute, and leaf. The broader the ridge the better the dog is considered for show.

There are two epistatic genes that determine the ridge and its size. The more genes of this type the individual dog has, the broader the ridge will be. There must be a dominant gene for the ridge to appear at all.

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.

. Children friendliness – Must be well socialized into the family.

2.Special talents – jumping and agility.

3.Adaptability – not good. Needs a high, unclimbable fense.

4.Learning ability – can be stubborn and independent.

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.

With such a mysterious origin, there are not a lot of documented episodes of genetic illness as the breed has been isolated in Thailand and natural selection has driven reproduction. There are only a few issues that they are genetically predisposed to. These include:

• Dermoid Sinus – this is a genetic skin condition known as pilonidal sinus as well. This is a defect in the neural tube and the sinus might be removed. If the sinus is wrapped around the spinal cord and cannot be removed it can be tied off.

• Hip dysplasia – can cause lameness and/or arthritis.

• Bloat – can be terminal if not treated as soon as possible. Bloat is a distension of the stomach and intestines which can twist and tangle, killing the dog almost immediately without veterinary attention.

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.

1. Feeding the Puppy - Don’t over feed the puppy as they are inclined to become obese. Feed a high quality protein rich puppy for medium breeds. Feed in 3-4 smaller meals per day. As he grows be aware of bloat possibilities.

2. Feeding the adult dog - The risk of bloat is even greater in the adult and so is the risk of obesity. Don’t feed large meals and don’t feed before or after strenuous exercise. Feed in 2 smaller meals per day.

3.Points for Good Health - Agile and muscular.

4. Games and Exercises – Energetic and needs serious exercise. She loves to swim, retrieve, hike, hunt, and catch frisbees. Likes search and rescue and guard dog work.