Sanshu vs Pugnaces Britanniae - Breed Comparison | Petzlover

Pugnaces Britanniae is a dog which is now extinct. There isn't certainty surrounding the origins of the dog but it is thought they descended from dogs brought to Britain way back in the 6th century BC already.

These are ancient dogs, and when you do research you find references dating back to centuries ago. In fact when you read of the Roman conquest of Britain you read of huge dogs, which the Romans referred to as Pugnaces Britanniae.

It is believed that the English Mastiff descended from the ancient Alaunt and Pugnaces Britanniae and that the dog was used as a war dog.

The Sanshu was developed in Japan a century ago – in 1912 in fact.

It is a cross between the Chinese Chow Chow and the ancient Japanese Aichi. People who know these dogs say they bear a resemblance to other Inu breeds, but it has a straight tail and not the usual curved one that you'd expect.

The breed is rare and they aren’t recognized by any breed organization.

The Pugnaces Britanniae was a huge dog standing at roughly 67 to 75cm and weighing 52 to 110kg.

He was a heavily built dog, a Mastiff type dog that had a large head, broad muzzle with fairly loose skin around the mouth, brown eyes, a broad back and rump, muscular legs and floppy ears with a long tail. In fact the Mastiff, thought to have descended from the ancient Alaunt and Pugnaces Britanniae, gives you an idea of what the dog looked like. He no doubt has a short, smooth coat available in fawn, tan or brindle and with the black mask.

Temperament:

The Pugnaces Britannia was a naturally aggressive dog so it is to be expected that he wouldn’t automatically have been a good family dog, possibly being aggressive around children and other dogs. They were intelligent and were no doubt taught some simple commands.

They were also very territorial dogs, wanting to instinctively chase and attack unknown people and animals. They were strong minded, confident, loyal ad loving dogs towards their owners, being protective of them, wanting to please them.

The Sanshu is a medium sized dog standing at between 50 to 55cm in height and weighing in the region of 20 to 25kg.

There is also a smaller variety. This dog has a wedge-shaped head with a tapering muzzle, dark almond-shaped eyes with small erect ears. The tail is long and is straight but it can bend over the dog’s back. The coat is short and coarse and can come in a number of shades such as tan, white, reddish, white and black.

Temperament:

The Sanshu is a dog that loves to please its owners. Even so, training and socialization should be given to this dog. He is an intelligent dog, and with training and socialization he becomes well balanced and able to respond to a few commands such as sit, come, stay and lie down.

These are loving, loyal dogs and bond closely with their human family. It is a true companion dog and makes an excellent guard dog too. He makes a great pet with children, if the children have been taught to be kind and gentle to animals and not climb all over them.

The Pugnaces Britanniae may well have been a large dog and quite imposing to look at but he was in all likelihood a good-natured pet who got on well with his family members, being loyal and loving if brought up correctly.

Long ago dog training and socialization didn’t exist but a large dog like this would have to be socialized and trained to become obedient and an amicable all-rounder.

Sanshu dogs are known for the exceptional companionship they offer. They are loving, loyal dogs, wanting to fit in peacefully with their human companions and eager to please.They are amicable dogs, willing to get on well with other dogs in the family too.

In exchange for such devotion, everyone who owns one of these dogs should be eager to ensure they provide well for their 4-legged family member.

The Pugnaces Britanniae could live to 10, 11 or 12 years of age with good care. Large Mastiff type dogs like this would have had to watch out for common canine diseases such as hip dysplasia, cancer and bloat.

In those days, no screening tests were available for health problems like this. Gastric dilatation volvulus or bloat is a common health issue with large, deep chested dogs where the stomach fills with gas and the stomach twists. Its a life threatening disease.

Canine heart disease is another serious health issue with these mastiff type dogs. Early stages with heart disease show there may well be no symptoms at all. However, as the heart disease progresses towards congestive heart failure, the dog will have symptoms such as fatigue, difficulty with breathing, weight loss, a distended abdomen and coughing.

A dog with symptoms like this would have to see a vet immediately.

This dog from Japan is a fairly healthy breed, and you can encourage good health by ensuring he gets good food and adequate exercise.

Nonetheless, every dog can fall prey to some of the many dog illnesses there are, and some of these diseases can be skin allergies, hip dysplasia, bloat, digestive issues, cherry eye, cancer and obesity.

Eye Problems:

The condition of the eyes can give away some ideas of a dog’s health. Eye discharge can be a sign of an infection or an allergy. If your dog’s eyes aren’t clear and there is a constant discharge, talk to your vet and get to the root of it. Left untreated, there are some eye diseases that can lead to blindness.

Skin Allergies:

Just like humans get all kinds of skin problems, dogs also do. It can drive them crazy and you see them scratching and biting. Skin allergies are sometimes caused by insect bites or allergies to medication or food. You might see excessive itching, scratching, a nasty rash, watery eyes and chewing of the paws. Atopic dermatitis is an inflammatory skin disease and you will need to get your pet to the vet.

Dental Problems:

You need to check inside your pet’s mouth and make sure that a bad tooth isn’t causing your pet tremendous pain and infection. Sometimes missing teeth can also interfere with the way your pet eats.

Diet:

The diets of ancient dogs were different to what they are today, as in those days there were no commercially manufactured dog foods. Dog owners in all likelihood tossed scraps to them which included starch.

Today a large dog such as the extinct Pugnaces Britannia would have no doubt been fed a high quality kibble from a leading brand and packed with minerals and vitamins specially formulated for a large dog breed.

Homemade food is also important, but not any kind of food – it has to be food which doesn’t upset the dog’s digestive system. Simple but nutritious food such as boiled chicken, brown rice or pasta, sweet potatoes, carrots and spinach is ideal for a dog, and when it is chopped up can be added twice a week to the dry kibble for a tasty, healthy treat.

Raw meat added in occasionally is also hugely beneficial. No dog should ever be without fresh, cool water constantly available.

Grooming:

As a short haired dog, the Pugnaces Britanniae would have required a brushing twice a week to rid the dog of loose hairs. Maybe in those days they didn’t check their dogs over to see that all was well, but today you would need to check the inside of the ears. If the insides were red, it could be a sign of an ear infection brought on by dampness, excess wax and dirt.

The eyes would need to be checked for discharge and the teeth checked a well. One rotten tooth can cause a lot of havoc. The nails of the dog would have had to be checked and clipped as well.

Exercise:

As a war dog, the Pugnaces Britanniae would have been fit. He is a big dog and while they require exercise such as walks and hide-and-seek type of games, he isn’t the kind of dog that would go running with you on a jog, as large, heavy dogs can overheat easily.

Brush the coat twice a week to rid the coat of loose hairs.

Check the ears and eyes for infection.

Feel for unusual lumps on your pet’s body.

Provide your pet with a warm, dry place to sleep.

Keep your pet’s vaccines up to date to eliminate killer canine diseases.

Have your pet spayed or neutered to avoid unwanted puppies.

Feed your pet well. A Sanshu dog will require the best dog food there is. If you give him commercially manufactured food make sure it is one of the better brands to avoid toxic ingredients.

To add some variety, feed him some home made food occasionally which can be added to his dry kibble twice a week. Boiled chicken, brown rice or pasta and spinach, sweet potatoes and carrots are a healthy choice for your pet. Try and include some raw meat into the diet as this can help in fighting off horrible skin diseases. Ensure there is always a bowl of fresh, cool water for him.