I think dark cornish might work. here is an ecerpt form Poultry breeding and genetics by R. D. Crawford found on google books.
"Autosexing. As pointed out by Silverudd (1974), sex-linked barring (B) could be called the autosexing gene, since it has been the key ingredient in all true autosexing...
Hi, Im new here. I currently have silkies and cochins, theyre good pets but Id like something a little more productive. Ive been reading about the autosexing breeds in Europe such as the Legbar and would like to try and create something similar. So here is what Id like to create:
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