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co has little effect on Birchen, I believe is is a Columbian mix but not to Er
OK, I'm new to cochins. Can you explain "Er"
Er is the Birchen allele of the "e" series of alleles, "E" (Extended Black) being the most dominant, followed by Er(Birchen), Dominant Wheaten(eWh), Wild Type(e+) Brown(eb)..
Homozygous Extended Black birds are what its called Self Black birds, example Black Jersey Giants
Homozygous Birchen Males look wildtype but with black wing triangle, example Birchen Cochins
Homozygous wildtype males are black breasted red, example Black Breasted Red OEG
co has little effect on Birchen, I believe is is a Columbian mix but not to Er
OK, I'm new to cochins. Can you explain "Er"

Er is the Birchen allele of the "e" series of alleles, "E" (Extended Black) being the most dominant, followed by Er(Birchen), Dominant Wheaten(eWh), Wild Type(e+) Brown(eb)..
Homozygous Extended Black birds are what its called Self Black birds, example Black Jersey Giants
Homozygous Birchen Males look wildtype but with black wing triangle, example Birchen Cochins
Homozygous wildtype males are black breasted red, example Black Breasted Red OEG
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