Eggs from game pheasants receiving a diet containing 19.0% crude protein and 11.7 MJ ME (control) or 15.0% crude protein and 12.6 MJ ME were studied. Analysis was made of 60 eggs (30 eggs from each group) collected during the 5th week of egg production. Eggs were examined within 24 h of collection. Pheasants receiving the experimental diet laid eggs with lower (P≤0.05) weight (26.3 g), length (42.1 mm) and width (33.5 mm) compared to the eggs from pheasants fed the control diet (30.8 g, 43.8 mm and 35.6 mm, respectively). The eggs from pheasants receiving the experimental feed had shells that were significantly (P≤0.05) lighter (2.5 g), thinner (0.280 mm), weaker (shell deformation 31.3 µm) and smaller in area (42.1 cm²). The eggs had the same percentages of albumen (52.9%) and similar percentages of yolk (37.4 : 37.6%) in both groups, with albumen and yolk weight being significantly lower in eggs from pheasants receiving the experimental diet. The change in diet composition increased the pH (P≤0.05) of fresh egg contents.

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