缠丝鸭蛋蛋品质及营养成分测定

为研究缠丝鸭蛋和普通鸭蛋在蛋品质及营养成分之间的差异,本试验随机选取300日龄左右鸭产的缠丝鸭蛋和普通鸭蛋各50枚,分别测定其蛋重、蛋壳厚度、蛋壳强度、蛋壳颜色、蛋白高度、蛋形指数、蛋黄色泽和哈氏单位等蛋品质性状及粗蛋白质、粗脂肪、钙、磷、锌和铁等营养成分含量。结果表明,与普通鸭蛋相比,缠丝鸭蛋的蛋重、蛋壳厚度、蛋壳颜色、蛋壳强度和蛋形指数差异均不显著(P>0.05),而蛋白高度、蛋黄色泽和哈氏单位极显著高于普通鸭蛋(P<0.01);蛋白质、钙、锌、铁含量较高,脂肪、磷含量较低。提示,缠丝鸭蛋蛋品质优于普通鸭蛋,营养物质含量比普通鸭蛋更丰富。

Determination on Nutrient Components and Quality of Chansi Duck Eggs

This study was to find the difference of nutrient component and egg quality between the ordinary ducks and Chansi ducks. A total of 50 ordinary eggs and Chansi eggs respectively produced from 300-hundred-day adult ducks were randomly selected. Egg traits such as weight, eggshell thickness and strength, eggshell color, albumen height, egg shape index, yolk color, Haugh unit etc were determined, and crude protein, crude fat calcium, phosphorus, iron, zinc, and other nutrients content were measured as well. The results indicated that as with egg weight, eggshell thickness, eggshell color, strength of eggshell and egg shape index, the differences between Chansi eggs and ordinary eggs were not significant (P>0.05), as for albumen height, Haugh unit and yolk color were very significantly higher than ordinary eggs (P<0.01), there were also more protein, calcium, zinc and iron, and less fat and phosphorus in Chansi eggs than in ordinary eggs. Therefore, the quality of Chansi eggs was better, and they contained more nutrition than the ordinary ones.