The horse base coat color panel bundles together several diagnostic tests to evaluate coat color.
 
TESTS INCLUDED IN THE PANEL: 
Red Factor: The extension gene, or red factor, determines whether a horse will have a chestnut base coat color or a black or bay base coat color.
Agouti (Bay/Black): The agouti gene controls the distribution of black pigment, and determines whether a horse will have a bay or black base coat color.
Champagne: Champagne is a coat color dilution responsible for diluting both red and black pigment as well as causing pinkish/lavender skin and amber-colored eyes.
Cream: Cream is a dilution that causes the palomino, buckskin, smoky black, cremello, perlino, and smoky cream coat colors.
Dun Dilution: Dun is a coat color dilution characterized by lightening of the coat, with the head, lower legs, mane, and tail undiluted. Oftentimes, dun is also characterized by "primitive markings" such as a dark dorsal stripe, barring of the legs, shoulder stripes, and "cobwebbing" on the forehead.
Gray: The gray gene causes progressive depigmentation of the hair, often resulting in a color that is almost completely white by 6-8 years of age. The individual gray test will determine the number of copies of the gray allele (zygosity). The coat color panel tests detect presence or absence of the gray allele.
Pearl: Pearl is a coat color dilution that is characterized by a dilution of the coat, mane, and tail as well as a lightening of the skin.
Silver: The silver dilution dilutes black/brown pigment to lighten the manes and tails of black and bay horses to a flaxen or silver gray. The silver dilution is also associated with an inherited ocular syndrome known as Multiple Congenital Ocular Anomalies (MCOA).
 
INSTRUCTION VIDEO: How to pull hair for testing