srjmdSRJMDSRJMD2788-9467https://doi.org/10.47310/srjmd.2023.v03i02.001Study of the chemical composition and physicochemical properties of different types of milkSabraa.S.YaseenEntisar.D.MustafaNaseer.M.FarhanSuraAliZThe study was conducted in the laboratories of the University of Tikrit affiliated to the College of Agriculture, which included a study of the chemical composition of certain types of milk (infant milk, buffalo milk, cow's milk, sheep's milk, goat's milk). Moisture percentage in goat's milk 88.9 and the lowest percentage in infant formula 3.66, and the highest percentage of protein was in sheep's milk 5.9 and the lowest in goat's milk. infant formula 3.06. As for fats, the highest percentage was in buffalo milk 8.3 and the lowest was in infant formula 2.59. As for ash, the percentage was highest in infant formula 0.89 and lowest in cow's milk. 0.73. The percentage of carbohydrates was relatively higher in infant formula 13.56, and the lowest percentage was in goat's milk 2.51. Some of the heavy elements present in milk were studied, and the percentages of them were within or slightly below the permissible limits. The percentages for cadmium were 0.016, 0.241, 0.032, 0.021, 0.104 respectively and those for nickel. The proportions of zinc were 0.038, 0.012, 0.041, 0.127, 0.021, respectively 0.015, 0.135, 0.162, 0.049, 0.237 and the proportions of cobalt 0.095, 0.059, 0.132, 0.046, 0.064, respectively.