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  1. NatJ

    Cockatiel or Crested?

    He will probably give crest to about half his chicks, and muffs to about half his chicks. Some chicks will get crest and muffs, some will get just one or just the other, and some will not get either one. He almost certainly has has one gene for crest and one for not-crest. That means he shows a...
  2. NatJ

    Cockatiel or Crested?

    Crest is caused by a dominant gene. So if it a chicken does not show a crest, it does not have that gene, so it cannot give that gene to the chick. So no matter what was used to develop the Silverudds, if the current rooster has no crest, he cannot give a crest to his chicks. Muffs are also...
  3. NatJ

    Cockatiel or Crested?

    I think it is the same gene that causes the chicken to grow a crest, but there are other genes that affect how big the crest grows. Those other genes would be the ones making it a different size. Legbars have a crest. Araucana in the USA does not have a crest. Araucana in some other countries...
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