Here's a sheet from the 4h avian bowl manual that I was just reading today!
Oh my gosh I love that book! I have a copy for Poultry Bowl. If you look at the sex-link breeding in Raising Your Home Flock Chicken, it's incorrect, so I send an email to the organization, and they said they'd change it in the next edition. That's actually where I get a lot of my information, including xanthophylls.
I'm in poultry bowl too! When do you think the new edition is coming out?
I had the same problem this week! My Australorp usually lays round coppery eggs, but I got an almost white one yesterday and was concerned. Guessing it might have been hers because of the shape -all 6 of my hens lay brown eggs. She has had a rough winter, frostbite and now the others are picking her head feathers (vaseline-related, I think?). Is your hen stressed? Edited by jgarruto - 1/8/16 at 11:47am