祝保林 魏光民 杨强

摘 要：采用新型的饲料配制方法，在3组海兰褐壳蛋鸡饲料中添加不同配比的海藻硒多糖和蛋氨酸硒等富含有机硒复合预混料，通过调整含硒复合预混料的配比，饲喂健康状态良好的产蛋鸡28d，对比不同种类的有机硒源复配饲料对富硒鸡蛋含硒量的影响。结果表明，新型饲料短周期喂养后，在对蛋鸡鸡群母体无不良影响，并显著改善了鸡蛋品质，使蛋鸡鸡群的蛋壳增厚（增厚2.4%）、蛋黄色度提高（提高0.46%）、哈氏单位上升（上升5.6%）、蛋黄比率增大（增大3.44%）鸡蛋中硒含量升高，含硒量在0.08～0.5mg/kg范围内，比原始对照组鸡蛋硒含量上升了4.8～6.0倍，平均提升5.6倍，符合国家食品卫生标准（GB2762-2005），硒主要富集在蛋黄内。新型饲料对蛋鸡本身无不良影响，对蛋鸡所产富硒鸡蛋产品其他品质也无不良影响。

关键词：含硒复合预混料；饲料配比；富硒鸡蛋 ；硒含量

中图分类号 S831.3 文献标识码 A 文章编号 1007-7731（2018）13-0102-05

Abstract：With a new method of feed preparation，it was used to add different proportions of seaweed selenium polysaccharide and methionine selenium to the feed of three groups of Hailan brown shell laying hens，which were rich in organic selenium，and the ratio of selenium containing compound premix was adjusted by adjusting the content of selenium in the feed of three groups of Hailan brown shell laying hens.The healthy laying hens were fed for 28 days to compare the effects of different organic selenium sources on the selenium content of selenium-enriched eggs.According to the test results，the quality of eggs was significantly improved under the condition that the new feed had no adverse effect on the mother body of laying hens after short period feeding.The egg shell of hens was thickened（thickened by 2.4%），the ratio of egg yolk increased（3.44%），and the number of hardy units was increased（5.6%），the content of selenium in eggs was increased in the range of 0.08-0.5ppm，the content of selenium in eggs was 4.860 times higher than that in the original control group，and the average increase was 5.6 times.In accordance with the national food hygiene standard GB2762-2005，selenium is mainly enriched in egg yolk.The new feed had no adverse effect on the laying hens themselves，and had no adverse effect on the other quality of the selenium-rich egg products produced by the laying hens.

Key words：Se；Selenium compound premixture；Feed ratio；Selenium enriched eggs；Selenium content

硒是人類和其他动物所必需的微量元素，对人体生命活动起着重要的作用，是多种酶蛋白的必需元素，如谷胱甘肽过氧化物酶（GDH-PX）、碘甲腺原氨酸脱碘酶等，以硒为活性中心的硒蛋白（如免疫球蛋白）已知的有25种[1]。硒缺乏会引起人体多种疾病，主要有克山病、冠心病、高血压、心肌梗塞、老年性痴呆、大骨节病、糖尿病、肝硬化、肝坏死、癌症等[2-3]。人们通过补硒可以达到提高机体免疫功能，抗病能力，延缓衰老的目的[4]。

据文献报道，我国是一个既有丰富硒资源，又存在大面积硒资源缺乏的地区，在这些硒缺乏地区的粮食作物、畜禽肉、蛋食品中硒含量也相对缺乏[5]。……