The advantages of the Border Collie Merle are: very smart, loyal, lively and cute. The disadvantages are: the hair is very long and needs regular care. Except for the different color of the merle-colored Border Collie, the other advantages and disadvantages of the merle-colored Border Collie are basically the same as those of ordinary Border Collies. However, it is generally not recommended to breed merle-colored Border Collies because they are prone to genes that dilute the coat color. Moreover, mating two merle-colored Border Collies may cause eye diseases in dogs.

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Our common Border Collie is basically black, white and lilac color Border Collie, so now many parents will choose to raise a merle color Border Collie , because it is very rare, some parents will choose to breed this special color. However, the color of merle Border Collie is a genetic defect, so it is best not to breed.