The point is your cock misses some part of a gene (I would say he misses 1 allel "Ml").
As far as I can see he have eb/eb S/? Pg/Pg Ml/ml+.
So if you breeded him yourself put him with his mother or with his sister to find that 1 missing "Ml" that will tranform the multipla orlatura to the (complete) doppia orlatura.
[Modificato da Danny_57 03/11/2011 20:03]