Changes in the Amount of Calcium and Phosphorus in the Composition of the Femur Bone of Broiler Chickens in Postnatal Ontogenesis

The dynamics of variations in the amount of calcium and phosphorus in the bone marrow of broiler chickens were investigated during their postnatal ontogenesis. From the first day of postnatal development to day 14, the amount of Ca and P in the femur of broiler chickens grew, then dropped until day 35. Until the 14th day of postnatal ontogeny, the process of increasing the amount of Ca and P in the femur of broiler chickens was shown to be somewhat expedited.