Table 5. Effects of breed, laying age and egg storage period on the ratio of organ weight to body weight of 7 days old chicks

Factors		Liver(%)	Heart(%)	Pancreas(%)	Spleen(%)
Breed (A)	Jaeraejong	3.89±0.44b	1.04±0.18b	0.55±0.12	0.11±0.04a
	K. Rhode	3.82±0.58b	1.16±0.19a	0.54±0.14	0.1±0.04b
	K. Leghorn	4.07±0.74a	0.96±0.12c	0.57±0.14	0.1±0.04ab
Laying age (B)	27~29wk	4.13±0.70a	0.98±0.18b	0.5±0.13b	0.08±0.03b
	50 ~ 52wk	3.72±0.40b	1.12±0.16a	0.6±0.13a	0.12±0.04a
Egg storage period (C)	3d	3.89±0.57ab	1.06±0.2	0.57±0.12	0.1±0.04
	7d	3.85±0.53b	1.06±0.18	0.54±0.15	0.1±0.04
	14d	4.04±0.69a	1.03±0.16	0.55±0.14	0.1±0.04
P values	A	0.0016	<0001	0.1673	0.0284
	B	<0001	<0001	<0001	<0001
	C	0.0244	0.1998	0.3801	0.5077
	A × B	<0001	0.0236	0.6005	<0001
	A × C	0.0105	0.0007	0.9628	0.9333
	B × C	0.0208	0.8102	0.0242	0.0119
	A × B × C	0.0616	0.0112	0.7051	0.3062

Values are mean±standard deviation.
The different superscripts within column in each factor significantly differ