【摘要】 用含有多种天然微量营养元素的甘肃临泽县凹凸棒粘土替代部分饲料饲喂蛋鸡。结果表明,饲料中添加1 %～2 %的凹凸棒粘土,可使产蛋率及平均蛋重略有提高,还可使鸡蛋中碘、硒、锌等营养元素的含量明显增多,其中碘含量由0.678 mg/kg增加到38.025 mg/kg;有害元素铅的含量明显降低,砷、汞、氟的检出量很少或没有检出。更多还原

【Abstract】 Using attapulgite clay, which has many natural trace elements, as part of forage to feed layers. The results showed that: the total of egg production and the average weight of eggs have improved by adding 1 %～2 % attapulgite clay. Iodine, Selenium, Zinc contents of eggs have distinct increased. The content of Iodine has increased from 0.677 6 mg/kg to 38.025 mg/kg. The content of Tead has distinct reduced. The contents of Arsenic, Mercury, Fluorine are very low.更多还原