May be due to its role in the synthesis of collagen for connective tissues. More recent research indicates that Vit C can help reduce the losses due to heat stress. Availability and function may also be dependent on atomic charge. Primary factor in nerve function. Major element in blood clotting.
Most calcium is in bones and is constantly being cycled.
Excellent feed sources include animal meals, oyster shell, limestone, and phosphate supplements. Phosphorus' role is similar to calcium. Absorption closely related with calcium. Only inorganic P is readily available. Deficiency symptoms include rickets, slow growth, anorexia, and general weakness.