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utrition plays an important role for better rates of production and bone quality in poultry. Numerous dietary nutrients directly influence growth, bone maintenance and quality of eggs, especially calcium (Ca) and phosphorus (P). The skeleton is the body’s reservoir of Ca and P and this function is particularly important in layers, since the eggshell contains approximately 10% of the total Ca of the bird’s body. Thus, there is a high Ca demand to maintain blood homeostasis, concurrently with the formation of the shell. Physiological mechanisms control skeletal integrity in response to the different needs of the productive life of the laying bird. In this review technical and physiological information about the Ca and P for Japanese quails were presented. Differences were found in the nutritional recommendations of Ca and available P (AP) for laying Japanese quails, resulting from the N

CÁLCIO E FÓSFORO NA NUTRIÇÃO DE CODORNAS JAPONESAS EM POSTURA