1. The experiment was conducted to evaluate the effects of cereal types (maize or wheat) and feed forms (pelleted or mash feed) on production performance, egg quality and egg sanitary indices in laying hens.

2. Three hundred and sixty hens (Jinghong No. 1) at 18 weeks of age were randomly assigned to four treatments with six replicates of 15 hens per replicate according to a 2 × 2 factorial design with two cereal types (maize or wheat) and two feed forms (pelleted or mash feed).

3. Compared with the wheat-based diet, the maize-based diet improved (P < 0.05) average egg weight of laying hens. Yolk colour of hens fed with the maize-based diet was higher (P < 0.05) in comparison to those fed the wheat-based diet, while Haugh units were lower (P < 0.05) for the maize-based treatment. Egg mass and average daily feed intake of hens fed the pelleted diet were higher (P < 0.05) than of those fed the mash diet. However, the mash diet improved (P < 0.05) yolk colour compared with the pelleted diet. The percentage of dirty eggs for the wheat-based diet was higher (P < 0.05) than for the maize-based diet. The percentage of dirty eggs was higher (P < 0.05) in birds fed the pelleted diet compared with those fed the mash diet. There were interactions (P < 0.05) between cereal type and feed form, with regard to average egg weight and shell thickness.

4. In conclusion, dietary cereal type affected average egg weight, yolk colour and Haugh units in eggs, while feed form influenced egg mass, average daily feed intake and yolk colour.

1. 本实验旨在评估谷物类型（玉米或小麦）和饲料形式（颗粒饲料或捣碎饲料）对蛋鸡生产性能、蛋品质和蛋卫生指标的影响。

2. 18 周龄的 360 只母鸡（景红 1 号）被随机分配到 4 个处理，每个处理 6 个重复，每个重复 15 只母鸡根据 2×2 因子设计，两种谷物类型（玉米或小麦）和两种饲料形式（颗粒饲料或捣碎饲料）。

3.与以小麦为主的日粮相比，以玉米为主的日粮提高了蛋鸡的平均蛋重（P < 0.05）。与饲喂小麦基日粮的母鸡相比，饲喂以玉米为主的日粮的母鸡的蛋黄颜色较高（P < 0.05），而以玉米为主的日粮处理的 Haugh 单位较低（P < 0.05）。饲喂颗粒饲料的母鸡的蛋重和平均每日采食量高于饲喂饲料饲料的母鸡（P < 0.05）。然而，与颗粒饲料相比，捣碎饲料改善了（P < 0.05）蛋黄颜色。以小麦为主的日粮中脏鸡蛋的百分比高于以玉米为主的日粮（P < 0.05）。与饲喂饲料饲料的鸡相比，饲喂颗粒饲料的鸡的脏蛋百分比更高（P < 0.05）。谷物类型和饲料形式之间存在交互作用（P < 0.05），

4. 总之，日粮谷物类型影响鸡蛋的平均蛋重、蛋黄颜色和哈夫单位，而饲料形式影响蛋重、平均日采食量和蛋黄颜色。