Table 5.

Retention of zinc (RZn-femur), calcium (RCa-femur) and magnesium in femur (RMg-femur) for different sources of Zn: fortified rice (Ultra Rice^®) or ZnCO₃.

Source × Dose	RZn-Femur (mg/100 g)	RCa-Femur (mg/100 g)	RMg-Femur (mg/100 g)
C30	1.06 ± 0.25 a	4.35 ± 1.56 a	0.35 ± 0.08 a
R30	0.63 ± 0.12 b	3.40 ± 0.93 a	0.33 ± 0.10 a
C15	0.54 ± 0.23 c	4.12 ± 1.12 a	0.34 ± 0.10 a
R15	0.46 ± 0.15 c	3.52 ± 1.25 a	0.32 ± 0.07 a

Results expressed in mean ± standard deviation of variables of rats after 42 days of diet containing 50% or 100% of zinc recommendations for animals, from zinc oxide; test diet = fortified rice, or control diet = zinc carbonate, (n = 10 rats/group). Means followed by the same letters in columns do not differ at 5% probability by analysis of variance (ANOVA); C30: Source of Zn:Zn carbonate, Zn 100%; C15: Source of Zn:Zn carbonate, Zn 50%; R30: Source of Zn:Fortified rice, Zn 100%; R15: Source of Zn:fortified rice, Zn 50%.