Table 6. Effects of dietary supplementation of silkworm powder on egg storage stability in laying hens¹⁾

Items	NC	Silkworm powder			SEM	p-value
		0.01%	0.03%	0.05%		Linear	Quadratic
Haugh unit
0 d	94.5	95.3	95.2	95.8	2.45	0.13	0.31
7 d	83.8	84.7	85.2	84.8	1.66	0.08	0.25
14 d	72.5c	76.8b	79.3a	79.5a	1.79	<0.05	0.21
21 d	57.2c	64.6b	66.8a	67.1a	1.02	<0.05	0.18
TBARS (MDA mg/L)
0 d	0.91	0.95	0.95	0.85	0.09	0.12	0.11
7 d	1.92	1.89	1.83	1.89	0.07	0.10	0.23
14 d	2.62a	2.51b	2.45b	2.47b	0.06	<0.05	0.11
21 d	4.11a	3.93b	3.84bc	3.77c	0.07	<0.05	0.18

Data are least squares means of 6 observations per treatment.
Means within the same row with no common superscripts differ significantly (p<0.05).