Calcium, phosphorus, sodium, potassium, manganese, and chlorine are involved in the formation of egg shells, improving the quality of egg shells and improving the quality of eggs and chicks. Changes in maternal phosphorus levels can affect the ash in the skeleton of chicks from primiparous hens. Therefore, the appropriate level of phosphorus must be provided in chickens feed equipments used in poultry farming to ensure the integrity of the bones during the early growth and development stages of the chicks.

For the study of minerals in feeds, what is most important is to use effective compound forms to increase the ability of the mother to transport these substances into tissues, eggs, and embryos. At present, the vast majority are concentrated on the research of antioxidants and on the role of selenium. Selenium-methionine a can improve the antioxidant capacity of vitamin E and eggs, embryos, and chicks within 10 days of age. Supplementation of zinc-methionine and manganese-amigo acid mixtures can improve chick immunity and survival.