Table 3. Changes in free iron content (μg/g meat) of Korean native chickens during refrigerated storage

Meat part	Storage (d)	Yeonsan ogye	Hyunin black	Hoengseong yakdak	Hwangbong	SEM
Breast	0	0.30y	0.31y	0.32y	0.39y	0.01
	5	0.38x	0.34y	0.33y	0.40y	0.01
	10	0.41x	0.41x	0.43x	0.48x	0.01
	Mean	0.36	0.35	0.36	0.42
	SEM	0.02	0.02	0.03	0.02
Thigh	0	0.95y	1.15y	0.86y	0.76y	0.04
	5	0.98y	1.18x	1.01y	0.90y	0.03
	10	1.25x	1.25x	1.22x	1.21x	0.005
	Mean	1.06	1.19	1.03	0.96
	SEM	0.07	0.02	0.08	0.10