我国畜禽饲料资源中微量元素铜含量分布的调查
王丽赛,张丽阳,邵玉新,马雪莲,王良治,邢冠中,杨柳,李素芬,吕林,廖秀冬,罗绪刚

A Survey on Distribution of Copper Contents in Feedstuffs for Livestock and Poultry in China
WANG LiSai,ZHANG LiYang,SHAO YuXin,MA XueLian,WANG LiangZhi,XING GuanZhong,YANG Liu,LI SuFen,LÜ Lin,LIAO XiuDong,LUO XuGang
表1 谷物籽实中铜含量分布(风干基础)
Table 1 Distribution of Cu contents in cereals (air-dry basis)
样品名称
Name of samples
省(市、区)数
No. of provinces
(municipalities, regions)
样品数
No. of samples
铜含量Cu contents (mg·kg-1)
平均值±标准差
Mean ± standard deviation
中位数
Median
众数
Mode
玉米Corn 30 1191 2.50±0.41b 2.35 2.44
小麦Wheat 28 251 5.09±0.56a 4.89 4.65
稻谷Rice 30 207 2.85±0.88b 2.81 2.22
大麦Barley 15 28 5.34±1.39a 5.47 5.67
PP-value <0.001
总平均值 Total average 3.95