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NOTE: What is the COI, ALC,percentages that show up under a dog's name?
COI is an acronym for "Coefficient of Inbreeding".It
is a mathematically computed percentage that describes the degree to which two
animals are closely bred, meaning that one or more ancestors appear more than
once in the pedigree. .
A related coefficient percentage is known as the Ancestor Loss Coefficient (ALC). It describes the degree to which recessive traits from ancestor generations are lost. Another way to think of it is as how many unique ancestors an animal has. If there are no duplicate ancestors, then no unique ancestors are "lost", and the ALC = 0%. When there are duplicate ancestors, more and more unique ancestors are "lost", and the ALC percentage goes up.
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