pISSN:1309 - 6958       eISSN:2146 - 1953
2015, Cilt 31, Sayı 4, Sayfa(lar) 235-241
Determination of some external and internal quality traits of Japanese quail (Coturnix coturnix japonica) eggs on the basis of eggshell colour and spot colour
Sema Alaşahan1, Gülşen Çopur Akpınar2, Sibel Canoğulları3, Mikail Baylan4
1Department of Animal Sciences, Faculty of Veterinary Medicine, University of Mustafa Kemal, Hatay, Turkey
2Department of Animal Sciences, Faculty of Agriculture, University of Mustafa Kemal, Hatay, Turkey
3Animal Production and Technologies, Agricultural Science and Technologies Faculty, Nigde University, Niğde, Turkey
4Department of Animal Sciences, Faculty of Agriculture, Çukurova University, Adana, Turkey
Keywords: Quail, eggshell and spot colour, external and internal quality
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Aim: In this study was aimed to determining internal and external quality of quail eggs with different eggshell colour, spot colour and spottiness.

Material and Methods: In this study, daily collected 318 eggs were used. The treatment groups were classified as those with very large brown spots on greyish white eggshell colour (I), black spots of varying size on greyish white eggshell colour (II), large brown spots on brown eggshell colour (III), widely distributed brown spots on brown eggshell colour (IV), and blue spots of varying size on greyish white eggshell colour (V). The eggs were individually numbered. External quality characteristics were identified before egg broken out. After eggs were broken out, long and short diameter of albumen, albumen height, yolk diameter and yolk height were evaluated.

Results: The differences for value of eggshell percentage and shell index between groups were statistically significant (P<0.01). The differences for albumen index, yolk index and Haugh unit between groups were significant (P<0.01, P<0. 001).

Conclusion: It may be expressed that eggshell colour and spot colour in quail eggs are significantly affected egg quailty characteristics like eggshell percentage, shell eggs index, albumen index, yolk index and haugh unit.