CADMIUM AND LEAD THROUGH AN AGRICULTURAL FOOD-CHAIN
CADMIUM AND LEAD THROUGH AN AGRICULTURAL FOOD-CHAIN
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DOI：
10.1016/s0048-9697(83)80027-8
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发表时间：
1983-01-01
影响因子：
9.8
通讯作者：
ANTHONY, W
中科院分区：
文献类型：
--
作者：
BRAMS, E;ANTHONY, W
两个实验测量了摄入小麦籽粒34天的蛋鸡的小麦籽粒和鸡蛋中以及停用30天后的肝脏和肌肉中的土壤镉和铅的含量。土壤Cd(0.6~2.9ppm)诱导籽粒直接线性积累，其范围为1.25~5.36ppm。籽粒对土壤铅的响应范围为4.0~18.7ppm，平均为2.7±1.5ppm。母鸡摄入1,500~11,000μg Cd kg−1体重，可诱发1.87ppm的干白蛋白，但在蛋黄、肝脏和肌肉中未检出Cd。34天后摄入的铅平均为13,386μg kg−1体重，蛋黄和白蛋白的平均含量分别为3 88和4 71μg Pbg−1，而肝脏和肌肉中未见铅。从土壤库来看，0.004%的Cd和0.02%的铅在籽粒中积累，1.6%的籽粒Cd在卵中积累。只有极少量(1×10−5)的Cd和Pd通过摄入谷物在母鸡组织中转移和保留。
Two experiments measured quantities of soil Cd and Pb in wheat grain and eggs of laying hens that ingested the grain for 34 days and in liver and muscle after a 30 day withdrawal period. Soil Cd (0.6 to 2.9 ppm) induced a direct and linear accumulation in grain which ranged from 1.25 to 5.36 ppm. No response to soil Pb (4.0 to 18.7 ppm) was detected in grain which averaged 2.7 ± 1.5 ppm. Ingestion by hens of 1500 to 11,000 μg Cd kg−1body wt induced 1.87 ppm in dry albumin but Cd was not detectable in yolk, liver or muscle. Lead ingested after 34 days averaged 13,386 μg kg−1body wt induced a mean of 3.88 and 4.71 μg Pb g−1in yolk and albumin, respectively, but none in liver and muscle. From the soil pool 0.004% Cd and 0.02% Pb accumulated in the grain; 1.6% of grain Cd accumulated in the eggs. Only minuscule quantities (1 × 10−5) of the Cd and Pb in the soil pool were transferred and retained in hen tissues via ingestion of the grain.