Allometric Relationship between Volume to Surface Ratio and Incubation Days in Bird’s Eggs.

The correlation coefficient between bird eggs volume to surface ratio and incubation time in 28 eggs (from Struthio camelus to Calypte anna) is R =0.561. The eggs volume (Vegg, m³), eggs surface (Segg, m²), incubation times (Tinc, s) and oxygen permeability coefficient (KO2, m/s) trough inner egg membrane are connected by allometric relationship: Vegg /(Segg·Tinc)=KO2 (for 1 Torr oxygen pressure trough egg shell membranes). This relationship allows calculate dynamics of oxygen permeability coefficient trough inner egg shell membrane during bird embryonal development. [ABSTRACT FROM AUTHOR]