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Appraisal of the York Electronics egg quality testing equipment when used by several operators

Published online by Cambridge University Press:  22 November 2017

S. Hoste
Affiliation:
Department of Agriculture, University of Reading, Earley Gate, Reading RG6 2AT
T. Bedford
Affiliation:
Department of Agriculture, University of Reading, Earley Gate, Reading RG6 2AT
H. Walker
Affiliation:
Department of Agriculture, University of Reading, Earley Gate, Reading RG6 2AT
E. A. Butler
Affiliation:
Department of Agriculture, University of Reading, Earley Gate, Reading RG6 2AT
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Extract

This equipment records egg weight (g) shell colour (% reflectance) shell weight (g) and thick albumen height (measured on an egg broken out onto a flat plane), and through the connection with a dedicated microprocessor derives the Haugh units (a logarithmically transformed measure of albumen height) and shell weight per unit surface area (mg/cm2). Means, standard deviations and coefficients of variation for a batch are transferred to a printer and/or microprocessor.

Experiment 1

Three operators each made three sequential measurements of egg weight and shell colour on 31 eggs, each record being automatically captured by the microprocessor.

Experiment 2

Using the same procedure four operators made two sequential measurements of egg weight, shell colour and albumen height on 30 eggs.

Type
General
Copyright
Copyright © The British Society of Animal Production 1988

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