Which mineral is essential for proper growth and is commonly supplemented in swine diets?

Calcium is a crucial mineral for proper growth and development in swine. It plays several vital roles in the pig's body, including the formation of strong bones and teeth. Calcium is also essential for various physiological functions, such as blood coagulation, muscle contractions, and the function of nerves.

In growing pigs, adequate calcium levels are particularly important to support skeletal development, especially during the rapid growth phases. If calcium levels are insufficient, it can lead to issues like rickets and other growth-related problems. While other minerals listed, such as iron, magnesium, and phosphorus, also play important roles in swine diets, calcium is specifically known for its direct contribution to growth and skeletal health.