References
- Carter , T. C. 1969 . The hen's egg: variation in shell deformation under static load with relative humidity and age of egg . Br. Poult. Sci. , 10 : 311 – 319 .
- Carter , T. C. 1970 . The hen's egg: some factors affecting deformation in statically loaded shells . Br. Poult. Sci. , 11 : 15 – 38 .
- Hunton , P. 1969 . The measurement of egg shell strength. A comparison of four methods . Br. Poult. Sci. , 10 : 281 – 289 .
- Kuit , A. R. and Tijen , W. F. 1968 . “ The heritability of egg shell deformation measured in two strains of laying type hens ” . In Bulletin 155 , Beekbergen, , Holland : Central Institute of Poultry Research, Het Spelderholt .
- Schoorl , P. and Boersma , H. Y. . Research on the quality of the egg shell. A new method of determination . 12th Wld's Poult. Congr. . Sydney. pp. 432 – 435 .
- Shrimpton , D. H. and Hann , C. M. 1967 . Shell deformation in predicting breakage due to transport and handling . Br. Poult. Sci. , 8 : 317 – 320 .
- Vanderstoep , J. and Richards , J. F. 1970 . The changes in egg shell strength during deformation . Poult. Sci. , 49 : 276 – 285 .
- Voisey , P. W. and Foster , W. F. 1970 . A non‐destructive egg shell tester . Can. J. Anim. Sci. , 50 : 390 – 396 .
- Voisey , P. W. and Robertson , G. D. 1969a . Errors associated with an egg shell strength tester . Can. J. Anim. Sci. , 49 : 231 – 234 .
- Voisey , P. W. and Robertson , G. D. 1969b . The rapid measurement of egg shell strength . J. Can. Soc. agric. Engrs , 11 : 6 – 8 .
- Wells , R. G. 1967 . Egg shell strength. 2. The relationship between egg specific gravity and egg shell deformation and their reliability as indicators of shell strength . Br. Poult. Sci. , 8 : 193 – 199 .
- Contribution no. 211 from Engineering Research Service.