Thai Ridgeback vs American Hairless Terrier - Breed Comparison

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.

Until recently the Thai Ridgeback was not known outside of its native land. However, after being recently recognized as a standard breed, the dogs are getting some notice from the western world. They are one of three known ridgeback breeds with the ridge running the opposite direction of the rest of her fur. The other breeds with this characteristic are the better known Rhodesian Ridgeback and the even lesser known Phu Quoc Ridgeback.

The Thai Ridgeback is believed to have originated in eastern Thailand but there is no documentation of their actual history. The breed is thought to be descended from the Funan Ridgeback based on a genetic hypothesis. It is thought that the same Funan Ridgeback is an ancestor od the Phu Quoc Dog. This Funan Ridgeback lived over a century ago. Along with the Rhodesian Ridgeback, all have a common ridgebearing ancestor.

It is still unknown where the original ridge came from but it has been shown that all of the ridgeback dogs have the same genetic mutation and even though the Rhodisian is from Africa, there is not a parallel mutation. The Thai Ridgeback is an active, energetic, tough dog. He is loyal, intelligent, and has great jumping ability.

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.

The breed is medium in size and muscular in body. They have a wedge shaped head, a short coat that is smooth and pricked, triangular ears. The ridge on his back is pronounced as the hair grows away from the rest of the coat from the hips to the withers. Puppies can be born with or without the ridge. They are extremely agile. With what is often called a sword tail being carried up, the Ridgeback has wrinkles on his forehead, a black tongue or the tongue has black marks, and almond shaped eyes.

The coat sheds minimally and is dense, while the eyes are usually brown – in blue dogs they can be amber. The color of the coat is fawn, red, black or blue with a black mask on the reds. There are 8 different ridge patterns: Feather, violin, saddleback, needle, arrow, bowling pin, lute, and leaf. The broader the ridge the better the dog is considered for show.

There are two epistatic genes that determine the ridge and its size. The more genes of this type the individual dog has, the broader the ridge will be. There must be a dominant gene for the ridge to appear at all.

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.

. Children friendliness – Must be well socialized into the family.

2.Special talents – jumping and agility.

3.Adaptability – not good. Needs a high, unclimbable fense.

4.Learning ability – can be stubborn and independent.

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.

With such a mysterious origin, there are not a lot of documented episodes of genetic illness as the breed has been isolated in Thailand and natural selection has driven reproduction. There are only a few issues that they are genetically predisposed to. These include:

• Dermoid Sinus – this is a genetic skin condition known as pilonidal sinus as well. This is a defect in the neural tube and the sinus might be removed. If the sinus is wrapped around the spinal cord and cannot be removed it can be tied off.

• Hip dysplasia – can cause lameness and/or arthritis.

• Bloat – can be terminal if not treated as soon as possible. Bloat is a distension of the stomach and intestines which can twist and tangle, killing the dog almost immediately without veterinary attention.

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.

Health issues

As previously mentioned the American Hairless Terrier has skin health issues and is also prone to hip dysplasia.

Exercise and games

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.

1. Feeding the Puppy - Don’t over feed the puppy as they are inclined to become obese. Feed a high quality protein rich puppy for medium breeds. Feed in 3-4 smaller meals per day. As he grows be aware of bloat possibilities.

2. Feeding the adult dog - The risk of bloat is even greater in the adult and so is the risk of obesity. Don’t feed large meals and don’t feed before or after strenuous exercise. Feed in 2 smaller meals per day.

3.Points for Good Health - Agile and muscular.

4. Games and Exercises – Energetic and needs serious exercise. She loves to swim, retrieve, hike, hunt, and catch frisbees. Likes search and rescue and guard dog work.