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Chicken egg sizes

Medium white eggs in carton

Chicken eggs are graded by size, for the purpose of sales. The egg shell constitutes 8–9% of the weight of the egg (calculated from data in Table 2, F. H. Harms).[1]

  1. ^ F. H. Harms (June 25, 1990). "Specific Gravity of Eggs and Eggshell Weight from Commercial Layers and Broiler Breeders in Relation to Time of Oviposition". CiteSeerX 10.1.1.827.3676.