i just asked this in the chat a few minutes ago.. lilpeeps said "Dee-uccle". A australian judge on a Poultry show DVD i have pronounced it.. what it sounded like "Du-Clay?"... im not sure.
Thank you so much! The lady I purchased my eggs from said she pronounced it Do-cles. She said another person calls them Do-Clay. I think Do-Clay must be the correct way to say it.