Sealyham Terrier vs English Mastiff - Breed Comparison

Throughout most of history there have been images created by people of very large, sturdy dogs that they shared their space with. The English Mastiff can trace some part of her ancestry to these same dogs. This breed is thought to have come from the stock of ancient breeds such as the Alpine Mastiff, Pugnaces Britanniae and Alaunt. The Mastiff in general has then become a main descendent of many other breeds of dogs since the 1880’s. The images of these types of dogs goes back to the 5th and 6th century.

There is no genetic evidence linking these dogs to the modern Mastiffs and the English Mastiff, but the resemblance is obvious. There is anecdotal evidence that these Mastiff type dogs were exported from England – the English Mastiff – to Greece to hunt game but were also used as war dogs by the Celts. The Alaunt was probably used the Normans and bred by the Alans. Writings and images throughout these times depicted a dog that looked very much like today’s English Mastiff. Some speculate that the English Mastiff came to the United States of the Mayflower.

There was a decline in the English Mastiff in its homeland in the 1800’s following the Cruelty to Animals Act of 1835 which prohibited owners and trainers from baiting animals. Then in the 19th century, prior to the first World War, systematic breeding programs began with J.W. Thompson. His first English Mastiff was a female named Dorah. Dorah’s ancestors included dogs from Thompson’s Grandfather. Captain John Garnier of the Royal Engineers also had dogs that contributed to the development of the English Mastiff.

During this time some breeders got away from pure type and began to breed for other factors. In the late 1800’s, Edgar Hanbury and Mark Hanbury Beaufoy began restoring the breed to its original soundness. One of their dogs was exported to the US were breeding to soundness continued until the First World War reduced the number of English Mastiffs around the world. By the time the war ended there were no English Mastiffs outside of England.

There was a dog in Canada named Beowulf and direct descendent of imports from Britain, who came to the States after the war and began to re-establish the breed on this continent and registered with the American Kennel Club. Yet as of 1945, the contribution from North

Breeding was stopped again for World War II and started again after the war. Many of these puppies died of distemper. Only one female had pups that were able to grow up into adults. North America sent dogs to England at this time and all of the Mastiffs from that time, could be traced back to Nydia and the 14 North American Mastiffs. Since then the breed has been restored slowly in Europe, North America and everywhere in the world.

The English Mastiff is known by his massive head with a black mask and comes in a wide variety of colors. He is also known as a gentle giant because of his personality and the love he has for his people.

The Sealyham Terrier is a rare dog breed originating in Wales. The dog was developed in the 19th century by Captain John Edwardes at Sealyham House. The Sealy has been associated with members of the British Royal Family, but its numbers declined to such an extent that it was listed as a vulnerable native breed by the Kennel Club.

The Sealyham Terrier club was created in 1908 and the dog breed was officially recognised by the Kennel Club in 1911. This dog is now recognized by all the major kennel clubs. The American Sealyham Terrier Club was founded in 1913.

The English Mastiff is a giant dog with a broad head and body. In terms of mass it is the worlds largest dog, just a little bigger that the Saint Bernard. The Great Dane and the Irish Wolfhound are 6 inches taller but do not carry the weight and bulk of the Mastiff. Mostly square in his body and his head with a massive chest and wide set forelegs. The head is square and very large. No matter the color of the coat, the face should have a black mask like the St. Bernard. His eyes and nose are also dark.

The Sealyham is a dog that stands low to the ground and its height shouldn’t exceed 27 - 30cm and weight should be about 8 - 9kg.

The double coat is considered non-shedding and is wiry and weather resistant. It is nearly always white but can be fawn. They’ve got big heads with dark, deep set eyes. The ears are semi-erect, semi-floppy and the tail is usually docked.

Temperament:

Affectionately referred to as Sealy, there aren't too many of these little dogs left. At one time, they were a very popular terrier breed, but today they are uncommon – almost endangered.

He’s a social dog with his human family but tends to be reserved around strangers. He also tends to be just a little bit more mellow than some of the more rowdier terrier breeds.

He gets on well with other dogs in the home as well as with children. He is an intelligent little dog but is inclined to be stubborn so you have to show him both firmness and kindness and also think about obedience training for him.

He’s amicable and adjusts well to life in the city or the countryside.

Children friendliness

The English Mastiff is very happy to play with children. You willl need to be careful with small children as he does not know his size and is likely to sit on them.

Special talents

This lovable giant is noble and loyal. He will protect his family and he will be courageous about it.

Adaptability

This is a big dog but he doesnt live outside. You need a big yard and perhaps a big house. He may not adapt to an apartment.

Learning ability

The English Mastiff is smart and certainly trainable. He can be independent and stubborn at times but he has the ability to learn.

The Sealyham Terrier is such a robust little dog with a distinctive look.

He can be stubborn but he loves his human family and is sociable and amicable with them, slotting in to their way of life. He can be a couch potato or an active outdoor dog – whatever is required of him and he makes and excellent, loving family pet and companion.

Being a massive dog can take its toll on the body’s development and that is certainly true of the English Mastiff. A lot of running is not recommended in the early life of the dog – preferable for the first two years. This could damage the joint’s growth plates and cause him a lot of problems in later years. Too much exercise in this massive dog can hurt him but so can, not enough exercise.

Some of the health issues other than this that the English Mastiff is prone to include:

1. Calluses –
2. On their paws. Must be taken care of before infection sets in.
3. Arthritis

A large dog like the English Mastiff is always prone to pain from arthritic joints. See your vet about pain medication.

Hygroma

A spot under the skin that is swollen and filled with fluid. Can be treated. It is not an infection or contagious.

Hip Dysplasia

Can result in lameness and arthritis.

This is a hardy dog breed and you don’t hear of many health problems associated with him. It seems as though you might have to watch out for an eye condition known as lens luxation. It's an eye condition with dogs where the lens slips out of position because of weakening of the fibers that hold it in place.

There is a lack of fluid in the eye causing optic nerve damage and this can lead to blindness.

Retinal Dysplasia is another eye problem . This is a developmental malformation of the retina that the dog is born with. Symptoms in dogs are a reluctance to jump off things such as the bed or he may even bump into things.

Atopic Dermatitis is something the Sealyham is more prone to. Its an allergic skin disease which drives a dog mad with its itchiness. Your pet will certainly need treatment from the vet to relieve it.

This is an enormous dog that grows quickly. It is important to feed them properly as they grow. If he doesn’t get what he needs as a puppy you will not be able to make it up to him later on.

Feeding the puppy

The English Mastiff puppy needs good nutrition for growing properly.

From 12-16 weeks of age feed him 3-4 cups a day of a high protein, high quality dry food. Break this up into 3-4 meals.

From 4 -6 months of age feed him 8-10 cups a day of a high protein, high quality dry food. Break this up into 2-3 meals.

From 6-18 months of age feed him 8-12 cups a day of a high protein, high quality, dry food. Break this up into 2-3 meals.

Feeding the adult

The English Mastiff is still growing from a year to 18 months. Starting at 18 months feed him 10-12 cups a day of high protein, high quality dry food. Break this up into 2 meals.

As your Mastiff ages, cut down on the protein and feed a dry food appropriate for his age.

Points for Good Health

The English Mastiff is a very large dog that should not be allowed to get obese since he is prone to dysplasia. He needs protein throughout puppyhood and until he is about 8-10.

Games and Exercises

This is a couch potato if you let him be. Make sure he gets at least one long walk per day or he will tend to gain weight. Play with them off leash about an hour every day.

Provide your Sealy with his own warm, dry bed.

Brush the long, weather-resistant coat at least twice a week. Hand-stripping of the coat will maintain the wiry, hard texture, but because this method can be quite a laborious process, many Sealy owners rather have their dog professionally clipped.

Check inside his mouth for bad teeth as well as inside the ears for signs of infection. His eyes should also be clear and free of discharge.

His nails will also need to be trimmed.

The Sealyham doesn’t require a lot of exercise but he must at least be given a walk every day.

Ensure the vaccines are up to date. They start when your pet is just a puppy. Remember to get your dog to the vet when you suspect that he is ill.

Feed your Sealyham with good food. Make sure you’re feeding your pet a high quality food as this promotes health and longevity. Provide your Santal Hound with top quality food to ensure his health.

Always choose the quality commercially manufactured foods on the market – those that have natural, good ingredients in them. Try to include some home-made food for him which can be simply mixed into the dry kibble twice a week.

There is no need to offer your dog a host of different foods. Dogs want simplicity and consistency. Boiled chicken, brown rice or pasta and spinach, sweet potatoes and carrots is super tasty and nutritious. If you can, also try and include a little bit of raw meat to his diet occasionally as this can go towards ensuring he doesn’t get skin diseases.

Make sure that a constant supply of fresh, cool water is available to your dog.