I don't know. Of all my losses only 2 have been to reproductive issues but then most of my losses were also in the first 2 years of life. I lost Trisha to complications from egg binding and I lost Daisy, the greatest hen ever, to complications from salpingitis. That is in 8 years. I'm not certain what that means though because of the predator and accidental losses. I don't think I can give you an expected rate.But that's two hens out of five at my house. Is that a high incidence?
Try to look at it this way. They are each individuals. Take Sandy.
Sandy was a rescue. She had been treated harshly before she came to live with you and was a production layer. It is hard to compare her to Peggy. They have no correlation in life experience.
Now I am going to be a gentle as I can with this but I do need to maybe pop one bubble that you have. You stated that Peggy came from "good stock" the other day. That is likely so, but, (I am sorry to say this, please don't hate me) I worry that her individual genetics may not be good. The pancreatic insufficiency that she suffers from is a genetic defect. It could be possible there are others.
