Mechanical behaviour under compression loading and some physical parameters of Japanese quail (Coturnix coturnix japonica) eggs
2007
Polat, R.,Harran Univ., Sanliurfa (Turkey). Dept. of Agricultural Machinery | Tarhan, S.,Gaziosmanpasa Univ., Tokat (Turkey). Dept. of Agricultural Machinery | Cetin, M.,Harran Univ., Sanliurfa (Turkey). Dept. of Animal Science | Atay, U.,Harran Univ., Sanliurfa (Turkey). Dept. of Agricultural Machinery
Forty eggs of nine week old wild-type Japanese quails were used to evaluate their mechanical properties. The average values of the measured variables were as follows: weight: 12.69 g, length: 34.87 mm, width: 26.20 mm, shell thickness: 0.27 mm, geometric mean diameter: 28.82 mm, surface area: 2,608.5 square mm, sphericity: 1.10, volume: 359.17 cubic mm, packaging coefficient: 0.469. The values of the coefficient of friction on plywood, glass, galvanized steel and fibreglass were 0.301, 0.282, 0.274 and 0.266, respectively. The highest rupture force, deformation and toughness were obtained when Japanese quail eggs were loaded along their X-axis. Compression along the Z-axis required the least compressive force to break the eggs in comparison with other compression axes. Rupture force, deformation, absorbed energy and toughness for the X-front axis were determined to be 10.51 N, 1.5 mm, 7.88 Nmm and 0.219 Mj/square mm, respectively.
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