American Hairless Terrier is originated from United States but Greater Swiss Mountain Dog is originated from Switzerland. American Hairless Terrier may grow 27 cm / 10 inches shorter than Greater Swiss Mountain Dog. American Hairless Terrier may weigh 58 kg / 127 pounds lesser than Greater Swiss Mountain Dog. American Hairless Terrier may live 4 years more than Greater Swiss Mountain Dog. American Hairless Terrier may have less litter size than Greater Swiss Mountain Dog. American Hairless Terrier requires Low Maintenance. But Greater Swiss Mountain Dog requires Moderate Maintenance
Derived from the Rat Terrier, the American Hairless Terrier was born in a litter of Rat Terriers in 1972.
The evolution of this breed is very different from other hairless breeds. The American Hairless Terrier was independently developed when a hairless pup was produced in a litter of normal Rat Terriers. The owners of this pup, Edwin and Willie Scott attempted to breed her to other Rat terriers but were not successful in having another hairless pup until years later. Then they had a litter with one male and one female hairless puppy.
From that point on they worked with a veterinarian and a geneticist to develop the breed until it was accepted as a separate breed from the Rat Terrier in 2004 and accepted into the AKC in 2016.
The breed is very rare and with hairless dogs breeding only produces about two thirds of the litter as hairless and one third as coated. If a hairless is bred to a coated terrier, the chances of getting hairless puppies are 50% hairless and 50% coated. It is very rare to get a hairless when breed two coated terriers. The difference between the American Hairless Terrier and other hairless breeds is that the hairless gene in most breed is a lethal dominant gene, but in the AHT it is a recessive gene.
Hailing from Switzerland, and one of its oldest dog breeds, the Greater Swiss Mountain Dog has a dubious history in that there are a number of theories as to its origin. He is closely related to the Bernese Mountain Dog, Saint Bernard and Rottweiler.
Of all the theories, the one that says he is descended from large, mastiff-like dogs is a popular one. He used to be a herding- and guard dog, but also was used to pull carts of farm produce.
It was in the 1900s that the dog’s numbers started dwindling. In 1908, canine researcher, Albert Heim recognized the dogs as being large members of the Sennenhund type, a family of four breeds that includes the Greater Swiss Mountain Dog.
He wanted to see the dogs recognized as a separate breed and the Swiss Kennel Club listed the Greater Swiss Mountain Dog in 1909.
In 1968 they were brought to the United States and a club for them was formed. The dog was recognized by the American Kennel Club in 1995 with the dog being recognized as a member of the Working group.
The American Hairless Terrier is similar to it’s breed of origin, the Rat Terrier, and the coated AHT looks very much like a Rat Terrier. They are small to medium in size, very muscular and have more refined features than the Rat Terrier. Their round eyes can be a variety of colors including amber, brown, grey, turquoise and blue. The tail is not docked but rather long and thin.
The AHT might have eyebrows and whiskers or they might only have whiskers. Their head is broad, and wedge shaped with upright ears. They are an energetic, social and intelligent dog.
Swissies, as they are often referred to as, are large, robust dogs, standing at 65–72cm and weighing anything between 50 – 70kg, with the females being slightly smaller and weighing a little less.
He has big, rounded paws, medium length floppy ears, a broad chest and a long tail. This is a heavy-boned dog, strong while still being agile.
His dense, double coat is black, white and tan or rust, with black on top of the dog's back, ears, tail and legs. There are two rust dots above each eye. The coat can be short and straight to medium length, coarse and wavy. The dog sheds throughout the year with a major shedding a couple of times a year.
The Greater Swiss Mountain Dog is a sociable canine, thriving on being part of a loving human family. While he used to be a working farm dog, today he is essentially a family pet, though he loves to still be busy.
He is generally friendly with strangers, but just like with all other dog breeds, he will need to be trained and socialized to turn him into an even-tempered, obedient dog, capable of getting on well with children and pets in the the home.
This is a curious, intelligent, little dog. They are terrific family dogs with a note to say they are better with older children than with younger. If they are raised with small children, then they are terrific with them. They are territorial, and the children become part of their territory. They will guard and protect them.
They need to play, and this is the biggest requirement for owners. Be sure you have time for them. This is not a couch potato dog. They have a lot of energy and can be destructive and “barky” if that energy is not dissipated. They are terriers through and through and love to “go to ground” whether going in holes they find or digging the holes themselves. They will go after small rodents like chipmunks. They need to be protected in these activities since their skin is vulnerable to scratches and cuts from brush. Their prey drive is strong, so it is important to protect them from themselves in this respect.
They are curious and feisty and every inch the terrier. Affectionate, friendly, and social it is also important to remember they can be scared easily, hurt if play is too rough, and this will trigger barking. They make very good watch dogs.
The Swissy is an easy going dog and adapts easily into his human family’s lifestyle. He is big, but agile dog known for his gentle temperament.
While he loves the outdoors, he is a social dog and loves nothing more than coming indoors and being close to his human family.
He loves his family and won’t do well if left outside for days without human companionship. Treat him well and you’ll be rewarded with a loyal, loving 4-legged family member.
There are not many health problems bothering this sturdy little dog.
The American Hairless Terrier has limited breeding stock and it is still a rare breed. Its health problems are mostly related to its hairless state. The breed is highly susceptible to sunburn, rashes, pimples, and allergies. They often need clothing in all seasons to protect them from the heat of the sun or from the cold. The skin must be cleaned regularly often daily with soap and water. This is especially true if sunscreen is used as they are open to skin infections.
Hip dysplasia is also a common issue for this small breed.
The GSMD or Sennenhund, as his name is shortened to, is a fairly healthy dog breed, with very few health issues.
He has an average lifespan of 10 to 12 years, and although not likely, he can suffer from minor problems such as gastric torsion as well as female urinary incontinence. If your female dog is dribbling urine in her sleep, there are a number of reasons that can be causing it - bladder infections, a medical condition or a weakened bladder with spayed female dogs.
The American Hairless Terrier has some food needs that might be different from other breeds. They should not be given food that contains soy, wheat or corn. They need to be fed at least 3-4 times a day in small amounts as puppies and twice a day as adult. Be sure to avoid overeating and obesity. Puppies need about 400 calories a day whether you feed four times or two times. The adult American Hairless Terrier needs about 500-600 calories per day. This might be half a cup to a cup per day.
As previously mentioned the American Hairless Terrier has skin health issues and is also prone to hip dysplasia.
This is a great breed for games if you make them small to match his size. He is energetic, athletic and playful. He loves agility, lure chasing and barn hunt activities. They need a good half hour of vigorous exercise per day.
The Greater Swiss Mountain Dog is a robust dog and thrives on a diet of kibble to raw meat to some cooked home-made food such as chicken, brown rice and vegetables.
A serious issue with the GSMD is overfeeding, resulting in uncomfortable digestive problems and of course, obesity.
Your GSMD isn’t a dog that is going to require a lot of exercise like some of the other dog breeds there are, but still his working career of the past requires that he still be taken on daily walks, enjoys ball- and rope games and to go swimming.
Brush your dogs coat at least twice a week to remove loose hears. Other grooming aspects include cleaning the ears to avoid infection, clipping his nails and brushing his teeth at least twice a week.
If you’re not sure how to do all these things, there are useful accessories for dogs that allow you to do all this grooming on your own. Your vet can also show you how as these are all things that will require ongoing attention.