On the relationship between the height of the thick albumen and the weight of eggs

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Abstract
Calculations from data of egg quality obtained at four Regional Experimental Farms for Poultry Husbandry and at the Central Institute for Poultry Research “Het Spelderholt” at Beekbergen, the Netherlands, support the conclusions advanced in recent American investigations that the uniform regression of Haugh (1937), which is used for the correction of the height of the thick albumen in relation to the egg weight (0.05 mm. per g. difference in weight), has no general validity. Only for fresh eggs at the beginning of the laying period was an average regression found which did not deviate significantly from the Haugh regression. Significant differences between farms and strain crosses were not established as long as exceptionally deviating circumstances were not considered. It was also found that as the laying period proceeded the Haugh correction factor for the height of the thick albumen in relation to the egg weight could have an adverse effect. The same conclusion is valid for stored eggs produced at the end, and probably at the beginning, of the laying period.