. 2014 Jun 13;6(6):2279–2289. doi: 10.3390/nu6062279

Table 2.

Weight gain (WG), food intake (FI), Zn ingestion (ZnI) and feed efficiency ratio (FER) for different sources of Zn: fortified rice (Ultra Rice^®) or zinc carbonate (ZnCO₃).

Source	WG (g)	FI (g)	ZnI (mg)	FER (%)
ZnCO₃	147.83 ± 22.31 ^a	819.83 ± 60.34 ^a	17.61 ± 8.18 ^a	18.71 ± 3.69 ^a
UR^®	124.12 ± 23.53 ^b	798.80 ± 60.68 ^a	18.49 ± 5.11 ^a	15.39 ± 3.87 ^b

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).