我国畜禽饲料资源中微量元素砷含量分布的调查研究

张铁鹰,张丽阳,刘俊丽,廖朝勇,吕林,廖秀冬,罗绪刚

A Survey on Distribution of Arsenic Contents in Feedstuffs for Livestock and Poultry in China

ZHANG TieYing,ZHANG LiYang,LIU JunLi,LIAO ChaoYong,LÜ Lin,LIAO XiuDong,LUO XuGang

表2 谷类籽实及其加工副产品中砷含量分布（风干基础）

Table 2 Distribution of As contents in cereals and cereal by-products (air-dry basis)

样品名 Name of samples 省（市、区）数 No. of provinces (municipalities, regions) 样品数 No. of samples 超标率 Over-limit ratio (%) 砷含量 As contents (μg·kg-1) 玉米 Corn 30 1191 0 6.72±0.42C 小麦 Wheat 28 251 0 33.08±6.72B 稻谷 Rice 30 207 0 221.04±8.34A 大麦 Barley 15 28 0 61.3±16.57B P值 P value <0.0001 总体平均值 Total average 38.07 碎米 Broken rice 20 54 0 63.05±4.32DE 次粉 Wheat middling 20 51 0 45.09±11.19DEF 小麦麸 Wheat bran 24 117 0 95.61±10.12CD 米糠 Rice bran 22 122 0 1016.2±29.07A 脱脂米糠 Defatted rice bran 12 71 2.8 938.34±53.53A 玉米DDGS Corn DDGS 13 96 0 73.60±6.13CDE 小麦 DDGS Wheat DDGS 4 16 0 493.96±107.2ABC 玉米胚芽粕 Corn germ meal 7 49 0 7.13±2.87F 喷浆玉米皮 Spray corn cortex 14 35 0 55.11±10.91DE 玉米蛋白粉 Corn gluten meal 17 90 0 43.25±6.72E 木薯干 Cassava slice 4 17 0 456.86±25.17B P值 P value <0.0001 总体平均值 Total average 329.24