Data from: Environmental downgrading induces depression-like states in laying hens

This dataset contains raw data from a study investigating depression-like states in laying hens exposed to environmental downgrading (cage-free to battery cages). Data are provided in a single Excel file with three sheets: Corn (anhedonia test): sweetcorn consumption before and after transfer. TNF-α (immune marker): relative expression levels at baseline and 80 days post-transfer. Attention bias: behavioral measures during attention bias tests, including latency to eat, latency to resume eating, vocalizations, and attention to threat.Each sheet includes individual-level data (hen ID, treatment, day, and outcome measures).本数据集包含一项针对暴露于饲养环境降级（从散养模式转为层叠式笼养模式）的产蛋母鸡抑郁样状态的研究原始数据。所有数据存储于单个Excel文件中，共包含三个工作表： 玉米（快感缺失测试（anhedonia test））：转笼前后的甜玉米进食量。 肿瘤坏死因子-α（TNF-α，免疫标志物（immune marker））：转笼前基线状态及转笼后80天时的相对表达水平。 注意偏向试验：试验过程中的行为学测量指标，包括进食潜伏期、恢复进食潜伏期、发声行为及威胁关注度。 所有工作表均包含个体水平数据，具体字段包括母鸡编号、处理组、试验天数及结局指标。