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3 植物性蛋白饲料中铜含量分布（风干基础）

Table 3 Distribution of Cu contents in plant protein ingredients (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 膨化大豆 Extruded soybean 13 110 12.60±0.69d 12.54 12.97 大豆粕 Soybean meal 23 330 14.09±1.26cd 14.15 12.54 菜籽粕 Rapeseed meal 21 165 6.45±2.24e 5.65 5.23 棉籽粕 Cottonseed meal 14 106 13.54±1.88cd 13.41 13.41 花生粕 Peanut meal 11 49 16.05±2.67c 15.13 12.91 亚麻粕 Linseed meal 3 19 21.45±10.71b 18.55 - 葵花粕 Sunflower meal 3 15 30.40±7.33a 27.01 - P值 P-value ＜0.001 总平均值 Total average 16.37