Occasionally, I’ll get an egg like this. I’m feeding a 16% protein Purina food. I have six other hands but only get one of these occasionally it’s usually much larger than the other eggs. Looks like it’s got tunnels under the surface.
As we moved into winter, I did not have supplemental lighting. Egg production quit entirely about six weeks ago. We had some predation problems that have been solved, without incident for two weeks. I thought that was the main issue, but I’ve been informed light duration Might have been the main...