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2 谷物籽实加工副产品中铜含量分布（风干基础）

Table 2 Distribution of Cu contents in cereal by-products (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 玉米蛋白粉 Corn gluten meal 17 90 9.04±1.49b 9.17 7.88 玉米DDGS Corn DDGS 13 96 4.18±0.47d 4.22 4.51 玉米胚芽粕 Corn germ meal 7 49 4.66±0.36d 4.59 3.98 次粉 Wheat middling 20 51 7.58±2.60bc 8.84 - 小麦麸 Wheat bran 24 112 12.13±1.86a 12.23 13.04 小麦DDGS Wheat DDGS 4 16 11.53±7.16a 9.73 - 碎米 Broken rice 20 54 1.62±0.88e 1.67 1.43 米糠 Rice bran 22 122 6.55±2.30c 7.38 9.87 P值 P-value ＜0.001 总平均值 Total average 7.16