Unfortunately people like us probably can't send tests into a lab to do so. Maybe a vet could. When I become a veterinarian I would like to see if I can test it. The thing with the ovary the only way I think we could be able to tell is if we did a necropsy on a Charcoal hen. Wish we could but I don't think anyone here has a Charcoal peahen willing to do so or possibly have necropsy photos of one. The only other thing I could think of it it's none of the above the an error in the endocrine system where the body is not releasing FSH to form follicles, LH to burst the follicle, estrogen to start the ovulation and so on and so forth with the reproductive hormones.