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For the love of Chicken(heavens open chicken choir clicks in unison)Humans paying attention&is describing us correctly ahhhhhhhhhhh.(that's my chicken version of a heavenly choir lol)
Agree 100% very accurate post!housten we have lift off![]()
All Dominiques have rose combs.
All barred rocks have straight combs. Male or female.
Sex - links may be either as they are a cross of two breeds.
@tgooberbutt
Single combs can hide in a flock of pure Dominiques. It does happen.
If it happens very infrequently, usually a breeder (even a most excellent and reputable one) will ignore the issue, try to guess who the carriers are, and move on.
To guarantee that no dominique hen is hiding the recessive single comb gene (technically, it is not a gene for single comb, it is a blank, and the hen is heterozygous instead of homozygous for rose comb), is a bit of a pain. You would need to take all of the hens, pen them up with a single comb rooster for at least 4 weeks, 6 much better. Then you would have to trap nest all hens individually, mark their eggs, and hatch at least 4, 10 chicks would be better, per hen. If all 10 chicks were rose comb, there is a very good chance that the hen is homozygous for rose comb (which is what you want). Then, after figuring out what you are going to do with 60 crossbred chicks you never wanted in the first place, you have to wait about 6 weeks before you can use those hens to produce pure Dominiques.
It is much easier, if you see a single comb pop up, to just get rid of the rooster you were using (since you now know he is heterozygous for rose comb, which is bad), and pick a different rooster. If you focus on a most excellent rose comb, there is a better chance that the rooster you choose will be homozygous for rose comb.
With all of that said.... Some breeders like a rooster that is heterozygous for rose comb, since that can indicate better fertility.