Spanish Mastiff vs Sealyham Terrier - Breed Comparison

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 Spanish Mastiff is a giant breed that comes from Spain. He has always been a guardian dog.

He is an ancient dog breed, in fact dating back to medieval times. He has always been a guardian of livestock, protecting them from attacks from wolves and other predators.

The first breed standard of this pure breed dog was made by the FCI in 1946. A breeding program was also formed for this dog In 1981.

The dog was recognized by the United Kennel Club in July 2006.

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.

The Spanish Mastiff weighs between 52 and 100kg and the dog’s height is between 72 and 88cm. He has a thick, heavy coat with rustic colors of fawn, black, grey, reddish and yellow as well as brindle.

He is powerful and muscular with a huge head. The ears are medium length and floppy and the tail is long. If you were looking for a puppy, the American Kennel Club is the only site which has 100% puppies from AKC-Registered litters.

Temperament:

Large, kind, gentle and intelligent, the Spanish Mastiff is well balanced. When you see him you won’t find a dog that is light on his feet and who jumps around excitedly. He is a dignified, intelligent dog, quiet and calm.

Even though he is so calm, it is still a good idea to have him trained and socialized as his very size could be a problem. When you tell him to lie down, you want him to listen to you. This big, gentle giant is devoted to his human family ad takes the role of guardian and protector seriously.

He isn’t suited to life in the city but is better suited to a large property, also because he has a loud bark.

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.

Kind, gentle, quietly confident and intelligent are just some of the wonderful characteristics of the Spanish Mastiff.

You can add loyalty and devotion to these characteristics too and the fact that he wants to protect you.

Your gentle giant is guaranteed to make you the most wonderful companion and he deserves the very best treatment there is.

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.

It is good to be wise about some of the common dog problems there are that could plague your Spanish Mastiff. Vets are very familiar with these dog illnesses and they tailor their treatment to suit the needs of your dog.

Remember to get your pet vaccinated against the terrible diseases you get that can kill a dog – rabies, parvo and distemper.

Obesity:

People often think that obesity is something that isn’t dangerous, when in fact it is a serious disease that can cause joint problems, digestive disorders, heart disease, back pain and hip dysplasia.

Dehydration:

Dogs rely on water just like what humans do to keep them healthy and functioning properly.

Water is critically important to every organ and also assists with digestion. Your dog is panting and urinating throughout the day and needs to replace the liquid he loses.

Dehydration in dogs results in loss of electrolytes, such as sodium, chloride, and potassium.This is bad as these minerals have important functions.

A dog that is dehydrated has loss of appetite, loss of skin elasticity, is lethargic, has sunken eyes, wants to vomit, has a dry nose and thick saliva. No dog should ever be left without a constant supply of fresh, cool water day and night.

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.

Diet:

These are giant breed dogs, so you have to be careful with the way you feed them. Large dogs like these are prone to hip dysplasia so you need to choose a food which has ingredients that work to prevent this disease.

You have to be very careful that you don’t overfeed your dog so that the extra weight puts strain on the joints.

This dog will do well with some raw meat added into his diet. Also, include home-made food too. Boiled chicken, brown rice or pasta, sweet potatoes, carrots and spinach chopped up and added to his dry kibble for giant breeds. Added in twice a week can do him the world of good.

Remember to never leave your dog without a constant supply of fresh, cool water.

Grooming:

A good bush of the thick coat twice a week will keep the Spanish Mastiff looking his best.

The nails will also need to be trimmed regularly to avoid overgrowth and to avoid the nails catching onto things. The ears too should be checked regularly to avoid dampness inside the ear which can cause bacteria.

Exercise:

As a fully grown adult, the Spanish Mastiff isn’t a frisky, frolicking dog but he will still require daily exercise. Options for exercise include long walks, hikes, swimming and ball games.