DNA Testing – Extended Black Gene

Extended Black Feathering Test (MC1R Gene – E Allele Detection)
The Extended Black gene, known as E and located on the MC1R (Melanocortin 1 Receptor) gene, is a dominant mutation that significantly increases the production of eumelanin (black pigment) in feathers. This results in a bird with solid black or very dark plumage, often overriding the expression of other color genes beneath it.

This test detects the presence or absence of the E allele, allowing breeders to determine whether a bird carries the gene responsible for extended black feathering.