At present, the poultry industry places great importance on natural pigment products to achieve an acceptable yolk color for the market. To determine the effect of achiote seed powder on the external and internal egg quality, a total of 400 Dekalb White egg-laying hens at 38 wk of age were placed for 56 d in a completely randomized design with 4 treatments and 20 replicate cages. Treatments consist of a control diet (CD) and CD + dietary supplementation with 0.50, 1.0, and 1.50% achiote seed powder. During the study, 40 eggs per treatment were collected on a weekly basis to determine the external (egg weight, eggshell breaking strength, shell thickness) and internal (albumen height, Haugh unit, and yolk color) quality, using a TSS EggQuality automatic analyzer. The use of achiote seed powder indicated statistical differences (P ≤ 0.05) for the following parameters: egg weight, Haugh unit, shell thickness, albumen height, and yolk color. Most of these statistical differences came from the treatment with 1.50% achiote seed powder compared with the control diet. However, no significant changes (P > 0.05) were indicated for egg weight (except week 4 and 5) and eggshell breaking strength (except week 5 and 6). All indicators of egg quality were affected by a significant interaction between the treatments and the experimental week (P ≤ 0.05). The dietary supplementation with achiote seed powder improves the external and internal egg quality in Dekalb White hens, with a greater emphasis on the yolk color.

目前，家禽业非常重视天然颜料产品，以实现市场上可接受的蛋黄色。为了确定花生壳粉对外部和内部鸡蛋质量的影响，将38周龄的400头产白蛋的母鸡以4种处理和20个重复笼子的完全随机设计放置56 d。治疗包括对照饮食（CD）和CD +膳食补充剂，分别添加0.50％，1.0％和1.50％的阿奇特种子粉。在研究过程中，使用TSS EggQuality自动分析仪，每周每处理一次收集40个鸡蛋，以确定外部（蛋重，蛋壳破裂强度，蛋壳厚度）和内部（白蛋白高度，霍夫单位和蛋黄颜色）质量。 。使用胭脂籽粉的指示统计学差异（P 为以下参数≤0.05）：蛋重，哈氏单位，壳厚度，蛋白高度，和蛋黄颜色。与对照饮食相比，这些统计差异大多数来自使用1.50％achiote种子粉的处理。但是，没有重大变化（P> 0.05）表示蛋重（第4和5周除外）和蛋壳破裂强度（第5和6周除外）。卵子质量的所有指标都在治疗和实验周（之间的相互作用显著影响P  ≤0.05）。在日粮中添加阿奇特种子粉可改善迪卡布白母鸡的内在和内在鸡蛋质量，并更加着重蛋黄色。