Data_Sheet_1_Dregs of Cardamine hupingshanensis as a feed additive to improve the egg quality.docx

Natural plant herbs have many active compounds to prevent poultry diseases and improve poultry products. However, most herbs are supplied for human medicine. Thus, for economic and sustainable development purposes, the dregs of Cardamine hupingshanensis (DCH) were developed as a feed additive to improve the egg quality of laying hens in this work. Results showed that the contents of selenium in hen serum and eggs were increased under DCH feeding. Subsequently, DCH also promotes the antioxidant capacity and immunity of laying hens through the increase of superoxide dismutase (SOD), catalase (CAT), and immunoglobulin G (IgG) by ELISA detection. Finally, production performance and egg quality were further graded by monitoring the product condition and scoring the indexes of egg quality, which also displayed that DCH as a feed additive significantly improved the egg quality by enhancing yolk color, eggshell thickness, and egg shape index.

天然植物药草富含多种活性成分，可用于预防禽类疾病并改善禽产品品质。然而，当前多数药草资源多供人类医药领域使用。因此，本研究出于经济与可持续发展的考量，开发了壶瓶山碎米荠药渣（DCH）作为饲料添加剂，用以改善产蛋鸡的蛋品品质。研究结果表明，饲喂DCH可提升产蛋鸡血清与鸡蛋中的硒含量。进一步经酶联免疫吸附测定（ELISA）检测发现，DCH可通过提升超氧化物歧化酶（SOD）、过氧化氢酶（CAT）与免疫球蛋白G（IgG）的水平，增强产蛋鸡的抗氧化能力与免疫机能。最后，本研究通过监测生产状态并对蛋品质指标进行评分，进一步评估了产蛋鸡的生产性能与蛋品质，结果同样显示，作为饲料添加剂的DCH可通过加深蛋黄颜色、增加蛋壳厚度、优化蛋形指数，显著改善蛋品品质。