We have both adult 2 year old and new layers. The new layers have smaller eggs but not the size of silky eggs, more the size of regular chicken eggs. The older WH lay very big eggs. We can not close the carton.
I have read 6 months. I know our adults are laying but we give them some extra light else they won't. My young ones aren't laying yet either but they are much younger.
I found this online-
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My WH started laying at around 25 weeks. I have about ten that started laying in mid Oct and...
We use eggs up to 7 days old. From what I read it said 10 days but we put eggs in the incubator weekly and also want to increase the chance they hatch successfully.
Can I hatch out duck eggs along with chicken eggs or do the duck eggs need special treatment in the incubator like humidity or temperature?
What about the brooder? Can Welsh Harlequins go in with Bar Rock and other standard chicken?
I am not sure if you mean WH eggs or just fertilized eggs, chicken or duck. I had a friend give us a barn yard mix of 24 chicken eggs that I am trying to hatch right now. She normally sells her eggs for food so I do not see why you can't find some one who sells fertile eggs and just ask them to...