الفهرس 
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Abstract
A total of 225 random samples of eggs were collected from different markets, groceries, supermarkets as well as from poultry farms and farmers houses in Alexandria governorate. They included commercial hen’s eggs of both native breeds and poultry farms and duck’s eggs. Collected samples were examined physically and microbiologically.
Physical examination:
In duck’s eggs, the results revealed that 68% had dirty shell,
28% had cracked shell, 6.7% had thin shell, 13.3% had
cloudy while, 14.7% had stuck yolk, 20% had sided yolk, 8%
had spready yolk, 6.7% had blood spots and 9.3% had tainted
egg. While commercial hen’s eggs of both native breed and
poultry farm revealed 60 and 13.3% had dirty shell, 24 and
6.7% had cracked shell, 5.3 and 2.7% had thin shell, 5.3 and
2.7% had cloudy white, 8 and 1.3% had stuck yolk, 9.3 and
2.7% had sided yolk, 5.3 and 0.0% had spready yolk, 2.7 and
1.3% had blood spots and 6.7 and 0.0% had tainted egg,
respectively.
Microbiological examination:
• Coliform organisms could be detected in 61, 52 and 25% in duck’s eggshells, native breed hen’s eggshells and poultry farm hen’s eggshells, respectively.