Which mineral is supplemented by feeding oyster shell to poultry?

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Feeding oyster shell to poultry primarily supplements calcium. Calcium is crucial for birds, especially for laying hens, as it plays a vital role in the formation of eggshells. A sufficient calcium intake ensures that the eggs produced are strong and have a proper structure. Oyster shell is a natural source of calcium carbonate and provides poultry with the necessary minerals to maintain bone health and support metabolic functions.

While iron, vitamin D, and potassium are important nutrients for poultry, they are not provided in significant amounts through oyster shells. Iron is essential for blood health, vitamin D helps with calcium absorption, and potassium is vital for various bodily functions, including nerve and muscle function. However, none of these minerals are supplemented effectively through oyster shells as they are primarily a calcium-rich source.