Samples of 30 fresh eggs per age group (day of lay) and 30 eggs per age group from stored eggs were weighed and broken to measure albumen Haugh units (HU). For each broken egg, an egg quality measurement system [21] was used to record the egg weight and the height of the albumen by connecting a transmission box and a balance to a personal computer. Then, after calibration of the albumen height gauge, for each weighed and broken egg, the height of albumen was measured (±0.25 mm) with a vertically mounted micrometer [21] with an electronic path. Between eggs, the micrometer was cleaned with wet and then dry absorbing paper. The standard software program version 2A [21] calculated the albumen HU using the egg weight and albumen height.