Does two colored eyes in dogs mean inbreeding?

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Heterochromia in dogs is often hereditary, meaning it is passed through their genetic makeup. But it can also be acquired later in life as the result of an eye injury or a health condition, points out Dogster.
The degree of inbreeding can be measured using a calculation called the coefficient of inbreeding (CoI), or inbreeding coefficient. This calculates the probability that two copies of a gene variant have been inherited from an ancestor common to both the mother and the father.

Claire Beaudreault. Heterochromia iridis is a rare (and often strikingly gorgeous) condition in which animals, including humans, have two different colored eyes.

It's particularly noticeable in dogs and cats.

The iris of the eye is colored by melanin (the same stuff that gives pigmentation to our skin.)


Dogs with one blue eye suffer from the misconception that eye must be blind.

This generally isn't the case.

Dogs living with heterochromia generally have accurate canine vision, which is much different than that of a human's vision.

Any dog breed can have almost any color eyes. It mostly depends on their genetics. However, for a Labrador to have blue eyes, the genetics has to be very poor… Eye color should be brown in both yellow and black Labradors, and hazel or brown in chocolate labs.
From light brown to dark brown, from hazel to golden yellow, they can acquire various shades within this time. It is also quite normal for German Shepherd puppies to have blue eyes, but once they grow up, this blue color changes to another shade.
My first Husky had dark brown eyes, while Sasha has a lighter brown color (middle photo below). Some people think that brown-eyed Huskies are not purebred because of their eye color, but the American Kennel Club has recognized this variation as a breed standard.

Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically.

Inbreeding results in homozygosity, which can increase the chances of offspring being affected by deleterious or recessive traits.

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