Table 2.

The effect of feed efficiency on the quality characteristics of chicken eggs during storage (n = 30/group; means ± SEM)

Measurement	Storage time1	HFE	LFE	SEM	P value
Egg weight, g	0	67.5	65.0	1.2	0.15
	14	67.0	64.5	1.2	0.14
	28	68.2	65.2	1.2	0.09
Egg height, mm	0	58.6	57.7	0.5	0.29
	14	58.47	57.7	0.5	0.26
	28	58.92	57.8	0.5	0.10
Egg width, mm	0	44.9	44.6	0.3	0.51
	14	44.8	44.3	0.3	0.31
	28	44.9	44.5	0.3	0.36
Shell weight, g	0	6.7	6.7	0.1	0.85
	14	6.7	6.7	0.1	0.90
	28	6.7	6.6	0.1	0.56
Shell thickness, mm	0	0.35	0.35	0.004	0.97
	14	0.35	0.34	0.004	0.38
	28	0.34	0.34	0.004	0.27
Albumen width, mm	0	74.5	76.5	2.0	0.49
	14	85.9	88.9	2.0	0.29
	28	88.0	91.7	2.0	0.21
Yolk width, mm	0	39.7	41.1	0.4	0.008
	14	41.9	42.9	0.4	0.06
	28	42.3	43.4	0.4	0.04
Yolk height, mm	0	17.5	17.1	0.2	0.06
	14	16.9	16.7	0.2	0.16
	28	16.9	16.6	0.2	0.14
Albumen pH	0	7.6	7.7	0.04	0.23
	14	8.9	9.0	0.04	0.07
	28	9.1	9.1	0.04	0.7
Yolk pH	0	5.92	5.9	0.03	0.56
	14	5.94	5.9	0.03	0.58
	28	6.03	6.1	0.03	0.73

HFE = high feed efficiency group, LFE = low feed efficiency group.

¹Storage time in days (d).