With storage, the albumen weight of these eggs decreased,
causing a lower egg weight. Yolk and shell
weights were not changed by storage. This result agrees
with those of many authors, most recently Ahn et al.
(1999), who have found that shell weight does not change
with storage. It may not agree with the literature for yolk
weight, which could be expected to increase with a longer
period of storage as amino acids move through the vitelline
membrane from the albumen (Heath, 1977).
With storage, albumen pH increased and albumen
height decreased, as expected (Li-Chan and Nakai, 1989).
Albumen height and pH are used to determine albumen
quality, and these two measures were associated statistically
when all eggs were considered together. Among
fresh eggs there was no relationship between albumen
height and pH, but the statistical association became