The merle part of the name refers to the irregular patches of black, white, and tan that can appear speckled throughout the blue. Thanks to this modification gene, Blue Merle Shelties have less melanin pigment in their fur.
Do blue merle Shelties have health problems?
The quick answer is that a well-bred merle dog with one copy of the merle gene will be as healthy as a solid-colored dog. If a dog is a so-called “double merle” however, he is likely to suffer from vision, hearing and skin problems.
What is the rarest color for a Sheltie?
Bi-Black Shelties. Bi-Black Shelties have solid black hairs which make up most of the color. They’re named for their distinct black-and-white combination, with bi being Latin for two. The Bi-Black allele is recessive, which makes it the least common Sheltie color.
Are Shelties high maintenance?
They are very sensitive to the moods of their people and do best in a home where gentleness is the way of life. Shelties are an active breed and need exercise everydaymore than just a 10 minute walk around the block. Shelties need regular biweekly grooming (brushing is a necessity!) and they shed extensively.