The objective of this work was to evaluate the effects of different forage levels in the diet on the net and dietary calcium (Ca), phosphorus (P), magnesium (Mg), potassium (K) and sodium (Na) requirements. Forty-four pure Holstein bulls calves, 60 days old with initial average live weight (LW) of 78 kg were used. Eight reference animals were slaughtered at the beginning of the experiment, to estimate the initial empty body weight (EBW) and initial body concentrations of Ca, P, Mg, […]