Kai Ken vs Blue Paul Terrier - Breed Comparison | Petzlover

Known also as the Scottish Bull Terrier, the Blue Poll or the Blue Poll Bulldog, the Blue Paul Terrier’s origins, as with many unusual dog breeds, are still not known precisely. However they do appear to have been bred with Staffies at some point and appear to have slowly transformed into the Staffie or Pit Bull as we know them today.

There doesn’t seem to be much documentation on the dog’s origins, making many stories of its origins to be looked upon as folklore. It seems as if the dog originated out of Scotland. The name ‘Paul’ is included in the name simply because it is believed that John Paul Jones, who was a sailor, brought the dog to the USA in 1777.

Because this dog has superb fighting skills, it was introduced as part of Staffordshire Bull Terrier breeding in the early 19th century. It is believed that the first dogs came with English immigrants to the United Stated in the middle of the 19th century. At some time, the dog became extinct, but dates of this time can’t be established.

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.

Staffie/Pit Bull Look Alike

The Blue Paul Terrier was a smooth coated, medium sized dog. His coat was mostly dark blue but this sometimes varied to red or brindle. He was a muscled and well built dog, much like our pit bull terriers. He weighed about 20 to 25kg kg, measuring up to 56cm at the withers. He had a broad chest, large head with small cropped ears and a tail that was set low. He is a dog that always stood strongly on his legs. It seems as if he had an aggressive nature as they were used by local dog fighters.

Aggressive by Nature

There is not much information on the temperament of the Blue Paul Terrier, but we can assume, that because he was a Terrier, he would have been full of character and self confidence. Most Terriers don’t actively look for a fight, but will certainly get into a fight if provoked. Aggressive by nature and a fighter, the Blue Paul Terrier possibly had some Staffordshire Bull Terrier in him, so his temperament would be that of a fighter.

He may have been able to live peacefully with children and other dogs and cats in the home, but he would no doubt have had to be raised from a puppy in such a household. Stubborn and headstrong, he would require a firm owner who could take charge of him and training would have been imperative for such a dog.

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.

Nobody is quite certain what the Blue Paul Terrier was like. He definitely seemed to be a mix of Pit Bull and Staffie – the same compact, muscular build with a look that speaks of confidence and boldness.

Perhaps if the Blue Paul Terrier wasn’t used for fighting, he might well have made a good pet with training and socialization. Nobody really knows. Maybe he was so aggressive that when dog fighting didn’t work out, and it was discovered that he wasn't really pet-material, nobody bothered when the breed went into extinction. That's the thing with Blue Paul Terriers, nobody is really certain about what they were really like.

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.

The Blue Paul Terrier Health was generally a healthy dog, but he would no doubt have had the same common dog ailments that most dog breeds have to contend with. All those years ago, when the Blue Paul Terrier was ill, his owner no doubt would have taken him to see the veterinarian for a full screening.

Just like with other dog breeds, he would have been watched for hip dysplasia , ticks and fleas, cataracts and skin infections. It is possible that in those days, owners of the Blue Paul Terrier weren’t aware of how plaque could cause dental problems or gum disease.

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.

Feed

Because these dogs were used in fighting, it is a breed that no doubt would have required plenty of exercise and mental stimulation to keep him fighting fit. No doubt he would have received a high quality food to build up his strength and stamina. Because he was no doubt a high energy dog, his owners would have had to give him nutritious food and ensured fresh, clean water for him.

Grooming

The Blue Paul Terrier had a short, smooth coat, so they were no doubt low maintenance dogs who received a brush down every now and then to remove his loose hair.

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.