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MEASUREMENT OF EGGSHELL STRENGTH *
Author(s) -
VOISEY PETER W.,
HUNT J. R.
Publication year - 1974
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.1974.tb01099.x
Subject(s) - eggshell , shell (structure) , measure (data warehouse) , specific gravity , fracture (geology) , ideal (ethics) , materials science , forensic engineering , computer science , geology , engineering , composite material , data mining , paleontology , philosophy , epistemology
Techniques used to measure the eggshell strength and associated parameters are reviewed. Much of the early research was based on crude instruments that did not adequately control test conditions, particularly the rate of applying force to the shell. Better instruments have been used recently to obtain precise readings. A significant advance has been the development of techniques to describe the physical properties of the shell material. This is potentially more meaningful than the empirical comparisons of egg behaviour, and is leading to a better understanding of the shell fracture mechanism. Two practical tests are currently available to the biologist for non‐destructive measurements: specific gravity of the egg and shell deformation under a non‐destructive force. Both predict ‐ with acceptable precision ‐ the shell fracture force. Eggshell strength has been investigated for over 70 years, but an ideal test method has yet to be found, and research is still required.