Can a double merle be healthy?

Can a double merle be healthy? Double merles, despite their deficiencies, are generally quite healthy dogs capable of living long, otherwise normal lives. And they are no more aggressive, unpredictable or untrainable than hearing and sighted dogs.

What happens if you breed 2 merle Aussies? Many people are unaware, but when two merles (of any breed) are bred together, each puppy has a 25% chance of being born as a double merle. These puppies have excessive white coloration – lack of pigment – and this coloration causes loss of hearing, vision, or any combination of the two impairments.

How do I know if my dog is double merle? Dogs with the double merle gene may be/have:

All white in color, or have patches of merle/mottled coloring on the top half of their body – their head, back, and base of the tail. Light-colored paw pads. Have light blue, green or brown eyes, perhaps even eyes that are different colors.

Is Double merle lethal? This has led breeders to kill white puppies at birth, leading to the other name of double-merle pups, “lethal whites.” The genetic defect itself isn’t lethal, and the ONLY genetic defects these dogs have are the hearing or vision impairments — which do NOT get worse over time by the way.

Can a double merle be healthy? – Additional Questions

Are double merles always deaf?

Double Merle dogs are highly likely to suffer from hearing and vision impairments and in some cases complete blindness and deafness. Deafness and hearing impairment happens due to lack of hair pigment produced in the inner ear. Double Merles can also be blind or have vision problems due to congenital eye defects.

How long do double merle Aussies live?

How long will they live? A lethal white Aussie will live the same lifespan as a regular Aussie, usually 12 to 15 years. The genetics (other than the double merle gene) in their family line will dictate the health and length of their life.

Is merle a lethal gene?

This is an incorrect and misleading term. There is nothing lethal about the merle gene, it can just be problematic. Lethal white is a completely separate gene which does not occur in dogs. It occurs in horses, and is recessive, unlike the dominant merle in dogs.

What happens if you breed two merle dogs?

If two merle dogs are bred together, each puppy in the litter has a 25% chance of being born a double merle. A double merle inherits the merle gene twice. One copy of the merle gene causes a marbling effect on the coat and creates lighter spots throughout the solid color coat.

What is the lethal with gene in dogs?

However, mating two dogs with the merle gene can produce offspring with a homozygous double merle gene, sometimes known as “lethal white” or “double-blue.” Dogs with the double merle gene are mostly white and usually deaf, blind or both.

What is a double merle?

What is a Double Merle dog? A double Merle is exactly what it sounds like. It is the puppy product of breeding a Merle, also known as marbled/harlequin/dapple, pattern dog to a Merle pattern dog. They can be of any breed or cross, and any colour Merle pattern.

What is wrong with merle dogs?

An autosomal, incompletely dominant trait, merle coat coloring predisposes dogs to inherited deafness. When inherited in the homozygous state, the merle mutation causes dogs to be white and have an even greater incidence of deafness, blindness and sterility.

Do merle dogs have more health problems?

Yes – merle dogs can be just as healthy as dogs that have a solid color. They have the same life expectancy, they are just as strong and athletic and smart as their counterparts without the merle gene. In lines with responsible merle breedings, all offspring will be healthy and live a long life.

What is a mismarked Aussie?

Dogs with excess white markings, sometimes referred to as mismarks, or over-marked. Australian Shepherds with too much white are usually healthy(exceptions noted below). There are entire breeds that allow far more white than typical of Aussies.

What is a Harlequin Aussie?

In other words, a “Harlequin Merle” is simply a beautiful and unusual variation of the more common Merle color pattern. When a Merle Aussie possesses the Harlequin gene, the already uniquely beautiful Merle coat pattern becomes even more “exciting”.

Are all Aussies with white ears deaf?

Not every dog with too much white is deaf, so there are probably additional genetic factors which determine whether the dog is deaf. However, if breeders make efforts not to produce puppies with white on or close around the ears they can significantly reduce the frequency of deafness in the breed.

What’s the difference between merle and Harlequin?

Harlequin dogs have white between the darker patches of merle. Merle dogs often look “marbled.” They have grey coloration alongside black spots. Harlequin dogs also have the merle gene. However, instead of the larger grey patches, their harlequin gene makes their base coat entirely white.

What breed is Scooby Doo?

Scooby Doo is a Great Dane, one of the biggest dog breeds. The character was created by Iwao Takamoto, animator at Hanna-Barbera Productions. Takamoto studied the breed when developing the character, but took plenty of liberties for the fictional series.

Can I breed a red merle to a Blue Merle?

There are NO OTHER CHOICES on the puppy applications for the breeder to mark on the registration documents at time of transfer of ownership. Breeding merle to merle is unacceptable as each puppy has a chance of being born blind & deaf as a result.

What is a piebald dog?

A piebald or pied animal is one that has a pattern of unpigmented spots (white) on a pigmented background of hair, feathers or scales. Thus a piebald black and white dog is a black dog with white spots.

Is dapple the same as merle?

The merle (also called dapple) pattern is the pattern in which random splotches of dark pigment are overlaid over a lighter shade of the same color.

What is an Irish marked dog?

Irish spotting (si) is the pattern sometimes known as “boston” or “mantle”, although these terms do not always refer to “true” irish spotting. On a dog with irish spotting, white is found on the legs, the tip of the tail, the chest, neck and muzzle. Many dogs with this pattern have a full white neck ring and a blaze.

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