绿头野鸭蛋的品质研究

Study on the Egg Qualities of Mallard Duck

对绿头野鸭 (Anasplatyrhynchos)蛋的品质测定表明 ,绿头野鸭蛋平均重 55.74g ,蛋形指数 1 .32 ,蛋壳厚度 0 .31mm ,密度 1 .0 75g/cm3哈氏单位 79.82。蛋黄比率、蛋壳比率、蛋白比率分别为 40 .0 2 %、1 0 .1 4%、49.84%。蛋黄、蛋白的粗蛋白含量分别为干重的 1 9.0 9%、1 1 .2 0 %。经相关性分析发现 。

The egg qualities of mallard duck (Anas platyrhynchos) were studied.The results indicated that the average egg weight was 55.74 g, the egg shape index was 1.32, the thickness of egg shell was 0.31 mm,the density was 1.075 g/cm 3,the Haugh unit was 79.82,the ratio of egg yolk, egg shell and egg white weight to egg weight were 40.02%,10.14% and 49.84% respectively, the mass fraction of crude protein in egg yolk and egg white (dry weigh) were 19.09% and 11.20% respectively.The correlation analysis suggested that between the density and the shell thickness there was very significant positive correlation.