If it is lethal how does eggs hatch?
As sumi stated it is the homozygous state of the tufting gene that is lethal in chicks, they die while still in the shell...
If it is lethal, than it would be impossible to hatch any chick. It can and usually is lethal. Excellent article!
Actually to clarify, it is when the chick inherits 2 copies of the tufting gene that is absolutely lethal... breeding tufted to tufted results in 50% tufted chicks, 25% clean faced chicks and 25% DIS...
Some breeders prefer to breed clean faced to tufted to avoid the chicks dying before hatch and some breed tufted to tufted and take the losses... personal choice...
Araucana folks, from reading Yashar's and other threads and articles, this is my impression of the origin of the breed - is this largely agreed upon or only one theory?
- Araucana, specifically the American breed and not the international breed, has the 3 characteristics of rumpless, ear tufts and blue eggs. It is likely descended from birds created in the early 20th Century by intensive breeding by Dr. Bustos of South American varieties found in various indigenous communities, including varieties such as the colloncas and queteros. So the birds with these 3 characteristics were not found in native communities - the combination was carefully bred by non-indigenous South Americans. A source:
http://www.araucana.com/Araucana_History.htm
That is absolutely the most accurate for American Araucanas... Araucanas in the UK have many standards that are different because American Araucanas were bred separately than the UK version... for showing purposes double tufted and rumpless is required, however... while breeding tails can and do crop up and clean faced is quite common... their ancestors were tailed and tufted on one side and rumpless blue egg layers on the other... this separation is a constant battle for breeders...
UK versions can have rumpless, tailed, tufted, bearded/muffed and also crests... much different than the American version...
