Show Minerals Will Improve Quality of Egg Shells Improvement in shell texture of eggs can be made in many cases by providing the foods that supply the mineral properties contained inthe in inthe inthe the shell itself ItselL The Thc shell of the egg contains about 90 per cent calcium calcium calcium cal cal- carbonate and foodstuffs containing containing containing con con- the minerals and vitamins necessary for shell production should help hep to increase the supply and bring about some some improvement in shell quality Shell grit or oyster shell grit provIdes provides provides pro pro- vides calcium carbonate but without without without with with- out vitamin D the hen may not be beable beable beable able to convert sufficient quantities to meet the demands for bone and shell egg formation |