Table 2. Mineral contents of the breast meats from HH, broiler, 2A, 2C, and 2D

Minerals	HH	Broiler	2A	2C	2D	SEM1)
Ca (%)	0.01	0.01	0.01	0.01	0.01	0.00
P (%)	0.21bc	0.23a	0.20c	0.21b	0.20c	0.00
Mg (ppm)	318.37b	335.23a	318.23b	321.85b	315.52b	1.73
Na (ppm)	296.34c	409.22a	314.99b	302.21c	299.10c	1.61
Zn (ppm)	5.55b	7.18a	5.68b	5.31b	5.35b	0.22
Fe (ppm)	9.37	8.85	7.70	8.00	5.00	1.12
Mn (ppm)	0.42	0.23	0.40	0.25	0.07	0.10
Cu (ppm)	0.34a	0.26b	0.35a	0.28b	0.30ab	0.01

Standard error of the means (n=40).
Different letters within the same column differ significantly (p<0.05).
HH, commercial native chicken (HanHyup No. 3); 2A, 2C, and 2D, new native chicken strains; Broiler, commercial broiler.