Kai Ken vs Giant Maso Mastiff - Breed Comparison | Petzlover

The Giant Maso Mastiff is a fairly new dog breed so you aren’t going to find much history on him.

The breed was only started in 2001 so as to create a mastiff dog that would have fewer health problems and therefore have the chance to live longer. The Giant Maso came about because of a mix between the Old English Mastiff and the Cane Corso Italiano.

As stated, breeding began in 2001 and the dog has inherited intelligence and protective instincts from both these dogs.

The Kai Ken dog hails from Japan and is both an ancient and rare dog. In fact the dog was discovered in 1929 in the Kai province near Mount Fuji. The dog has the nickname Tora Inu in Japan which means 'Tiger Dog'. Maybe its got to do with the brindle striped coat or his bravery.

He falls into the working class category. In 1931, the Kai Ken Aigokai registry was formed to preserve the dog. In fact in this year Dasuke Adachi discovered these dogs and in 1934 was actually designated a Natural Monument in Japan and also protected by law.

The Kai Ken was recognized in 1934 by the Japanese Kennel Club. It is not 100% certain but it is thought that the dog was brought to the United States in the 1950s.

The Giant Maso Mastiff is a large dog breed and can stand at between 67 to 70cm in height and weigh 60 to 90-kg.

He has a big square head with medium sized floppy ears and thick neck covered with loose skin. Muscular, he is a deep chested dog with powerful legs and long tail. The fur of the dog is short and sleek and can be a number of colors such as fawn, an apricot color, gray and black as well as brindle.

Temperament:

Intelligent, protective, self-confident, balanced and calm, the Giant Maso Mastiff may be quite an imposing looking dog but he is gentle-natured towards his family.

The large dog loves to please and receive praise from his human family. He is the perfect friend, getting on well with children in the home as well as with other dogs. Training and socialization is easy for this dog and it is important that he is trained if you want him to be an obedient pet.

He is gentle, intelligent, protective – simply known as a gentle giant, being calm, steady and amicable. This breed loves to please and needs lots of companionship from his human family, loving just to lie close by to them.

He isn’t a particularly active dog, but will still need to join you on a walk every day. It is why the Maso Mastiff can live in the city or in the countryside, because not being an overly active dog, he doesn’t need a large garden.

The Kai Ken has always been used for hunting purposes. He comes as recommended for hunting people and those who are active.

It is a medium sized dog standing at between 43 to 56cm in height both male and female and weighing between 14 and 22kg.

The ears of the dog are erect, the muzzle is fairly tapered and the nose is black. The tail is bushy like that of a fox and curls over the back. The double coat of the dog is of medium length and harsh and is a brindle color in a reddish or black shade.

Puppies are born black and then the brindle stripe-like pattern comes in later. He has an athletic body and is a keen swimmer.

Temperament:

The Kai Ken is an intelligent dog, loyal to his human family while being somewhat reserved around strangers. They are amicable with both children in the home as well as other pets.

He is a friendly, intelligent dog, forming close bonds with his family. Have him trained and socialized and he'll make you a splendid pet who will be willing to guard you if anyone threatens.

One look at that bright face and you can see that he is an intelligent, independent dog. He is also courageous and fearless and makes a great watchdog, especially because he is naturally reserved and suspicious with strangers.

Your Giant Maso Mastiff is such a gentle giant of a dog. He is well behaved and gentle so that it almost seems unnecessary to have him trained and socialized and yet doing so will make him even more amicable.

Calm and gentle he makes the perfect pet for families where there are children as well as elderly people. He is quite frankly everyone’s friend, being a loving family pet. If you’re a family more into indoor games and TV watching than an outdoor, sporty kind of family, the Giant Maso Mastiff will suit you.

He will love to settle down and watch TV with you. He isn’t particularly active, although he will certainly need a walk every day.

Those who have owned a Giant Maso Mastiff will tell you that this is an excellent family pet, making a wonderful companion dog.

The Kai Ken is a working- and hunting dog, so he is used to being active and will want a home where he can be played with and exercised regularly.

He can be slightly stubborn and independent so training and socialization are imperative. This is also because the dog’s curiosity and his athletic skills can lead to trouble if he isn’t properly trained.

Treat him the way he deserves and you’ll see that he is able to develop a strong bond with you and be altogether an excellent family pet.

There has always been the concern with joint disorders in large breed dogs. Both hip- and elbow dysplasia can occur with your Giant Maso Mastiff, more so if you overfeed him as a puppy and he grows too fast.

With hip dysplasia, the long bone of the leg forms incorrectly. This can lead to pain and lameness with your pet.

Also check out bloat. This is a serious illness when the stomach fills with air and can twist. Gastric Dilatation-Volvolvus, is an emergency situation then which is found more often in large, deep-chested dog breeds.

If you see your dog with a bloated stomach and acting in a strange, lethargic way, get him to the vet immediately as bloat can be life threatening.

With a lifespan of 14 to 16 years, and given the genetic purity of the Kai Ken, you aren't likely to battle with congenital health problems with your dog, but it is always good to be aware of certain minor health issues that he could succumb to.

He can suffer from a few common dog diseases such as progressive retinal atrophy or hip dysplasia.

Progressive Retinal Atrophy:

This is a disease of the eye where there is wasting of certain parts, and in this case the cells of the retina develop abnormally. This can eventually lead to blindness. It’s an inherited disease that can occur in pure- and mixed breeds, and dogs with PRA shouldn’t be used for breeding.

It isn’t a painful condition, and the first symptom usually noticed in a dog is night blindness where you may notice him bumping into things at night and being reluctant to walk around in the dark.

Grooming:

As an average shedder, the smooth, shorthaired coat is easy to groom, and a good brush twice a week will be adequate.

The Giant Maso Mastiff has floppy ears and therefore these should be checked for ear infections. Wax build up and dirt will need to be checked and cleaned.

His nails will need to be clipped, especially if they don’t wear down on their own and his teeth will need to be cleaned 2 or 3x a week to avoid dental disease.

Diet:

With a large dog breed puppy such as the Giant Maso Mastiff, rapid growth is a risk factor for developing joint and bone conditions. The growth period can last till 12 months and puppies of large breeds should actually have their caloric intake adjusted during this growth period.

It is important to ensure that your puppy grows at a slow, steady rate. If you are feeding dog food from the commercially manufactured range, if you aren’t sure, speak to your vet about large breed dog foods. You want to be sure that this gentle giant of yours receives the best dog food there is, whether commercial branded dog food or your own home-made food. Good nutrition is imperative for the health of your pet.

Even though the coat is thick, the Kai Ken will require basic canine care, so a brush twice a week will be enough to keep the coat free of loose hair. He sheds more heavily a couple of times a year and then he will require more brushing.

He has always been used to hunt so he is a dog that will require regular exercise such as walks, hikes, swimming and ball games.

The nails of the dog should be trimmed regularly once they become long as long nails can be hazardous and can hook onto things, causing injury to the nail area.

The ears of the dog should be checked regularly for fleas and ticks, and teeth should also be brushed with canine toothbrush and toothpaste.