If she's having trouble with her liver, it would affect the uptake of calcium from her diet, right?
Are you also supplementing with oyster shell also? I have been doing that, but now I am paranoid maybe I should flip over to layer even if it means Pangoo gets that...
Not really. The liver and calcium absorption are not connected. However whatever is causing the liver enlargement might also be stopping calcium absorption in the digestive track.
The calcium and bones issue is insanely complicated in humans, re osteoporosis, I would expect it to be similar in chickens. Intake, metabolism, the use by the body of the calcium in the bones and the replenishment back into the bones, the blood calcium needs and whatnot (scientific term there) - the endocrine system's role, etc and the effects of load on the bones. All these things play a part. I probably left something out!