Table 8
Mineral requirements for dairy cows

ParticularCalcium (Ca)Phosphorus (P)
Maintenance (g)1611
Milk yield (g/kg)3.211.98
Mg and S : 0.20% of DM intakeCopper : 10 ppmManganese : 40 ppm
Na : 0.18% of DM intakeIron : 50 ppmCobalt : 0.50 ppm
K : 0.90% of DM intakeZinc : 80 ppmSelenium : 0.30 ppm
Cl : 0.25% of DM intakeIodine : 0.60 ppmChromium: 0.5 ppm