what priority is given to insuring that this breed is totally homozygous for the blue egg gene by different breeders .
Steve,
I don\'t know of any breeders that test-mate thier breeders to make sure they are pure (homozygous) for the blue egg gene. Odds are most are pure for it. The bigger problem is many carry modifying genes for brown shell coating. That is what needs to be bred out.
I do know that many of us have made it a higher priority in recent years to breed for blue eggs (without the modifiers for brown), while not losing the other Ameraucana traits that were higher in priority while developing the different Ameraucana breeds/varieties (16 recognized total).
Micheal\'s article in the latest ABC Bulletin relates to your question.
Also, keep in mind that the Standard\'s reference to blue eggs shells is only part on the info given about the breed, before it lays out the description that is the Standard the birds are judged by. This is one reason some of us prioritized breeding for the Standard requirements (type, size, color, etc.) before concentrating on refining the egg color.