Here's one for the myth busters: supplemental light: does it predispose hens to reproductive problems, or does it cause them to stop laying sooner? I don't know how you would set it up as an experiment. Perhaps gathering some already completed scientific studies.
Here's an other question which I'd love to see looked at: does music improve productivity in layers or weight gain in chicks, either layer or meat birds?
And an other one: does MHP system with the natural day/night cycles affect growth rate of chicks (meat or layers) and does MHP decrease likelihood of orthopedic issues or organ failure in Cornish Cross birds.
How do MHP raised chicks compare to heat lamp raised chicks in terms of POL?