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Each hair follicle is surrounded by many melanocytes (pigment cells), which make and transfer the pigment melanin into a developing hair. Dog fur is colored by two types of melanin: eumelanin (brownish-black) and phaeomelanin (reddish-yellow). A melanocyte can be signaled to produce either color of melanin. Dog coat colors are from patterns of:
A dog's coat is composed of two layers: a top coat of stiff guard hairs that help repel water and shield from dirt, and an undercoat of soft down hairs, to serve as insulation. [1] Dogs with both under coat and top coat are said to have a double coat. Dogs with a single coat have a coat composed solely of guard hairs, with little or no downy ...
These dogs typically have a metallic-looking sheen to the hair. These are conformation disqualifications within the breed and are linked with a skin disease known as Color Dilution Alopecia. The gene affecting this colour variation in all dog breeds is the recessive 'dilution' (D) locus.
A cat with black point coloration. Points are specific areas of an animal coat that are colored differently from the main body colorations. Point coloration may be represented by a pale body color and relatively darker extremities, such as face, ears, feet, tail, and external sex organs, as seen on Siamese cats. [1]
This is the first recognition of a dog breed of New Zealand origin. [ 9 ] [ 10 ] There is an NZKC standard for the Huntaway breed, but the standard notes: It is the opinion of the New Zealand Sheepdog Trial Association that a Huntaway should never be shown, due to the large variance in colour, type and size and the inability to prove in a show ...
However, in young or immunocompromised animals those mites can multiply causing hair loss. The Sarcoptes mite is an infectious parasite that causes widespread intense itchiness, crusting, and hair ...
Dogs do not have red-sensing cones, so their sight is similar to that of someone with red-green color blindness, according to research by Jay Neitz, a professor of ophthalmology and a color vision ...
One version produces yellow dogs, and a mutation produces black. All dog coat colors are modifications of black or yellow. [2] For example, the white in white miniature schnauzers is a cream color, not albinism (a genotype of e/e at MC1R.) Today, dogs exhibit a diverse array of fur coats, including dogs without fur, such as the Mexican Hairless ...