褐壳蛋蛋壳颜色与鸡蛋品质相关性分析

Correlation Analysis on Eggshell Color and Egg Quality in Brown-shell Egg

研究旨在分析褐壳鸡蛋蛋壳颜色与鸡蛋各品质性状的相关性。选取北京市华都峪口禽业有限责任公司培育的褐壳蛋鸡纯系4个品系为试验材料,测定36周龄和56周龄时鸡蛋的蛋壳颜色、蛋壳强度、蛋壳厚度、蛋形指数、蛋重、蛋黄颜色、蛋白高度和哈夫单位,研究蛋壳颜色深浅与鸡蛋品质的相关性。结果表明:4个品系在36周龄和56周龄时,蛋壳颜色与蛋壳强度、蛋壳厚度呈中低度相关,且不同品系、不同周龄相关程度不同,蛋壳强度和蛋壳厚度随着蛋壳颜色变浅呈现降低的趋势。而蛋壳颜色与蛋形指数、蛋重、蛋黄颜色、蛋白高度和哈夫单位不相关。

In this study, four pure line hens laying brown eggs were used as materials. At 36 and 56 weeks of age the eggshell color, eggshell strength, eggshell thickness, egg shape index, egg weight, egg york color, albumen height and Haugh unit were measured to analysis the correlation between eggshell color and other egg quality. The results showed that at 36 and 56 weeks of age,the correlation between eggshell color and egg shape index, egg weight, egg york color, albumen height and haugh unit was poor. While the correlation of eggshell color with eggshell strength and eggshell thickness was from low to moderate between different lines at different weeks of age. Besides, the value of eggshell strength and eggshell thickness became lower with the eggshell brownness lighter.