Measured Albumen Quality as Affected by Time After Break-out

Abstract

INSTRUCTIONS for measuring interior quality of eggs were published by Brant and Shrader (1952). These instructions specify that the egg should be weighed, broken out on a flat glass plate, and the thick albumen measured using a spherometer. These measurements are converted into Haugh units by means of an interior quality calculator described by these authors.This procedure has been widely accepted as a technique in egg quality research. Brant, Otte and Norris (1951) compared Haugh unit values, calculated by this procedure (Brant and Shrader, 1952), with albumen index values (Heiman and Carver, 1936) and with Van Wagenen scores (Van Wagenen and Wilgus, 1935). Their publication makes possible conversion of published data, using albumen index or Van Wagenen score as measures of egg quality, to Haugh units.At the present time the method described by Brant and Shrader (1952) is being used widely in egg quality research laboratories and egg …