Table 5. The effect of major quality traits on storage length, turning frequency and egg position during storage period

	n	AI (%)	YI (%)	HU
SL (d)
7	172	2.40^a	41.38^b	83.70^a
14	170	2.26^ab	42.60^a	82.79^ab
21	164	2.20^b	40.13^c	81.74^b
28	166	2.18^b	37.42^d	81.03^b
SEM		0.03	0.25	0.29
p-value		***	***	***
TF (times/d)
0	215	2.27	40.43^ab	82.58
1	227	2.28	39.77^b	82.38
24	230	2.24	40.95^a	82.51
SEM		0.03	0.22	0.25
p-value		-	**	-
EP
PEU	227	2.34^a	40.04	82.97^a
BEU	227	2.24^b	40.63	82.06^b
H	218	2.20^b	40.48	81.96^b
SEM		0.03	0.22	0.25
p-value		**	-	**
Interactions	p-value
SL × TF		-	-	-
SL × EP		***	**	*
TF × EP		***	-	*
SL × TF × EP		*	***	-

Means along the same column with different superscripts are significantly (^*p < 0.05; ^**p < 0.01; ^***p < 0.001) different.
SL, storage length; TF, turning frequency; EP, egg position; PEU, pointed end up; BEU, blunt end up; H, horizontal; AI, albumen index; YI, yolk index; HU, Haugh unit.