Akita Inu vs Pugnaces Britanniae - Breed Comparison

The Akita Inu, originating from Japan's snowy Akita Prefecture, has a long-standing legacy as a powerful hunting dog and loyal companion. Bred in the 1600s to track large game like boar and bear, the Akita quickly earned its place among Japanese nobility as a guardian and symbol of courage.

Its dignified nature and unwavering loyalty were immortalized in the true story of Hachikō, an Akita who waited nearly a decade for his deceased owner at a Tokyo train station. This devotion captured national and global admiration, leading to the breed’s recognition as a national treasure in Japan.

After World War II, American soldiers introduced Akitas to the West, giving rise to a larger, more robust variation known as the American Akita. Today, the Akita Inu remains a cherished breed worldwide for its strength, loyalty, and quiet dignity.

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 Akita Inu is a large, powerful, and dignified dog breed known for its striking appearance, quiet nature, and unwavering loyalty.

Originating from Japan, it has a broad head, erect triangular ears, and a plush double coat that comes in red, white, brindle, or sesame, with characteristic urajiro (whitish markings). The Akita carries itself with pride and confidence, often aloof with strangers but deeply affectionate and protective toward its family.

Calm, intelligent, and strong-willed, the breed requires early socialization and firm, consistent training. Though not ideal for first-time owners, the Akita Inu is a loyal guardian and devoted companion for those who understand and respect its independent spirit.

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 Akita Inu is a large, noble, and powerful breed known for its dignified presence, strong loyalty, and quiet confidence. Originally bred for hunting and guarding, Akitas are naturally protective, courageous, and independent thinkers.

They form deep bonds with their family but are often aloof with strangers. Calm and clean by nature, they rarely bark without reason and carry themselves with elegance and strength.

Their double coat is thick and weather-resistant, requiring regular grooming, and they shed heavily, especially seasonally.

While intelligent, Akitas can be stubborn, so they thrive best with experienced owners who can offer consistent training and leadership. With proper care and socialization, the Akita Inu is a devoted, majestic companion.

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.

The Akita Inu is generally a strong and resilient breed, but it is prone to several genetic and breed-specific health issues.

Common concerns include hip and elbow dysplasia, progressive retinal atrophy (PRA), and hypothyroidism, all of which can affect mobility, vision, and metabolism.

The breed is also susceptible to autoimmune disorders like VKH-like syndrome and sebaceous adenitis, a skin condition causing hair loss and irritation. Additionally, Akitas may experience bloat (gastric torsion), a life-threatening emergency common in deep-chested dogs.

Regular veterinary care, proper diet, and responsible breeding practices are essential to help minimize health risks and ensure a long, healthy life.

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.

Caring for an Akita Inu involves commitment, consistency, and understanding of the breed's unique needs. They require regular grooming, especially during seasonal shedding, with brushing at least 2–3 times a week and daily during coat blow periods.

Akitas thrive on routine exercise, such as long walks or playtime in a secure area, but they aren’t overly energetic. Training and socialization should start early, using positive reinforcement and calm, firm leadership to manage their independent and protective nature.

They are best suited to homes where they are the only pet or properly introduced to others. Akitas are clean, quiet, and typically bond closely with their family, so providing mental stimulation, affection, and clear boundaries is key.

Regular vet checkups, a balanced diet, and proper social interaction help keep your Akita healthy, happy, and well-adjusted.

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.