思州鸡蛋品质及营养成分分析

Analysis of egg quality and nutritional components of Sizhou chicken

【目的】分析评定思州鸡蛋品质及营养价值,为开展思州鸡选育及其种质资源的开发利用提供参考依据。【方法】随机选取相同条件下放牧饲养的思州鸡蛋30枚,进行鸡蛋品质及营养成分分析。【结果】思州鸡蛋的平均重、蛋形指数、蛋壳厚度、蛋壳强度、蛋比重及哈氏单位分别为50.49g、1.35、0.38mm、3.75kg/cm2、1.08g/cm3和72.75,蛋黄、蛋清和蛋壳比例适中,粗蛋白、粗脂肪和水分含量分别为14.10%、14.16%和72.85%,钙、铁、锌和硒含量分别为66.68、2.85、2.26和0.008mg/100g,不饱和脂肪酸含量为63.21%,氨基酸、必需氨基酸和鲜味氨基酸总量分别为14.26、6.02和4.53g/100g。【结论】思州鸡蛋品质优良,营养物质含量丰富,具有广阔的开发利用前景。

[Objective]The present experiment was aimed to evaluate egg quality and nutritional value of Sizhou chicken to provide scientific information for its exploitation. [Method]A total of 30 eggs of Sizhou chicken randomly selected from the same grazing conditions were used to test egg quality and nutritional components. [ Result]The average egg weight, egg shape index, eggshell thickness, eggshell strength, egg specific gravity and Haugh Unit of Sizhou chicken were 50.49 g, 1.35, 0.38 mm, 3.75 kg/cm2, 1.08 g]cm3 and 72.75, respectively. There was appropriate proportion of egg yolk, egg white and eggshell. The contents of crude protein, crude fat and water were 14.10%, 14.16% and 72.85%, respectively. Calcium, iron, zinc and selenium contents were 66.68 mg/100 g, 2.85 rag,/100 g, 2.26 rag/100 g and 0.008 mg/100 g, respectively. The content of unsaturated fatty acid was 63.21%. Total amino acid, essential amino acid and delicious amino acid contents were 14.26, 6.02 and 4.53 g/100 g, respectively. [Conclusion]There is a bright future for high-quality and nutritious eggs of Sizhou chicken.