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7 矿物质饲料中砷含量分布（风干基础）

Table 7 Distribution of As contents in mineral feeds (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) 石粉 Limestone 18 65 30.8 1926.4±300.36B 磷酸氢钙 Dicalcium phosphate 13 45 60 13292.5±1376.9A 贝壳粉 Oyster shell meal 5 9 0 1428.0±204.60B 骨粉 Bone meal 15 28 0 53.52±24.24C P值P value <0.0001 总体平均值Total average 5018.6