Egg eating is usually opportunistic eating--weak egg shells, broken eggs and etc.One of my hens suddenly turned into an egg eater, and got 4 of my 8 marked eggs. None of them exhibited signs before I'm so upset right now. I was able to candle a couple eggs and at least one of them seems to have a dark spot inside so I'm still hopeful for the rest of them. I currently have her separate from everyone else. So far the remaining eggs are all still there. This literally made me feel sick to my stomach. I haven't noticed any smells so I don't see that as being the reason for her to eat them. She does seem to be the most aggressive hen, and I have no reason to believe it was just the marked eggs. I plan on culling her as soon as I increase my flock. What horrible luck I've had with my first try.
Work on flock nutrition. This usually works:
Add ouster shell calcium free choice
Use calf manna-chicken feeding instructions on the label
Give them a good added to water vitamin a couple of days every week
Limit treats--Completely eliminate them for a week
IF using fermented feed consider not using it. Some nutrients are increased with it but some are decreased