Table 2.
Sur face color values of egg yolk from laying hen with different feeding

Diets2)	Egg yolk
	L1)	a	b	ΔE
	Control	58.90±4.83^a3)	16.60±2.43^a	34.88±3.00^a	53.56±5.31^a
A	41.06±5.23^b	25.15±3.62^b	26.88±2.89^b	66.09±5.45^b
B	50.68±5.33^c	17.74±2.34^a	31.17±3.33^c	57.77±4.71^ac
C	47.34±4.34^c	19.66±2.06^a	29.44±3.33^bc	60.14±5.43^c

L, lightness; a, a plus value indicates redness and a minus value greenness; b, a plus value indicates yellowness and a minus value blueness, and ΔE, total color difference. Standard values of L, a and b were 95.83, -0.13 and -0.12, respectively.
Control : 100% commercial diet for laying hen, A, B and C : mixed diet with 90% commercial feed and 10% Undaria pinnatifida, Laminaria religiosa and Hijikia fusiforme, respectively.
Mean values within a same column with different superscript letters were significantly different at p<0.05.