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Manna Pro Oyster Shell is a natural calcium supplement for laying hens, ducks, geese, and other poultry. Formulated with pullet-sized crushed oyster shell and coral calcium, it provides the essential dietary calcium laying birds require to build strong, sturdy eggshells and maintain healthy bone density.
Feed free-choice in a separate feeder alongside regular feed so each bird can consume according to her needs.
California Proposition 65
