Coat Color Calculator
This calculator will give you the possible offspring coat colors and their probabilities when given the parents
coat color and pattern information. For a gray sire or dam, you must enter what color the horse was before
it went gray as well as check the box labeled gray to the right of your color selection. Calculation accuracy of
the offspring color possibilities and probabilities can be greatly increased when providing the color genetics
of the sire and dam.
Q: Where is the color Brown?
Added Appaloosa (LP) to the list of patterns. This only accounts for the master Appaloosa gene, the "Leopard Complex (LP)" gene. The calculator does not account for the variations of the Appaloosa pattern which is most likely controlled by the interaction of the LP gene and other yet to be identified patterning genes.
6/12/10: We have changed the calculator to take into account that Roan, Tobiano and Sabino are mutations of the KIT gene found on horse chromosome 3 and thus will not occur on the same branch of a horses chromosome pair. This means that a horse that carries any two of the Roan, Tobiano or Sabino genes can only be heterozygous for each gene and will pass one or the other to its offspring and never both or none. This also means a horse cannot carry more than two different KIT mutations or be homozygous for any if two of the genes are present.
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