Table 1.

Serum and tissue Zn concentrations in lactating Zip3-null and wild-type dams and their offspring

	Genotype
	Wild-Type	Zip3-null
Dams
Serum, μg Zn/mL
Early	0.46±0.22	0.55±0.12
Late	1.01±0.46	0.58±0.25 (P = 0.07)
Liver, μg Zn/g
Early	5.56±2.29	5.34±1.11
Late	6.64±0.79	5.98±0.65 (P = 0.09)
Mammary gland, μg Zn/g
Early	9.35±3.94	11.94±1.3
Late	11.95±0.5	12.4±0.72
Offspring
Serum, μg Zn/mL
Early	0.44±0.18	0.51±0.11
Late	0.85±0.29	0.70±0.29
Liver, μg Zn/g
Early	30.86±2.46	27.79±2.05*
Late	30.36±3.04	27.11±3.18

Data represent means ± SD; n = 6–8 dams or 6 pups/day.

^*Significant effect of genotype; P < 0.05.