I have a goose whose eggs never have that shiny smooth coating that eggs have. Her eggs tend to have a chalky feeling surface. Now shes been laying mis-shaped eggs. Not grossly mis-shaped but just not perfect and the shells are quite porous. She is very well fed. She gets fresh water daily, layer pellets, smaller portions of whole oats, sunflower seeds and grass now to graze on. They have access to free choice oyster shell and grit. Anybody know why this happens and how to remedy it?