我国畜禽饲料资源中微量元素锌含量分布的调查

邵玉新,张丽阳,马雪莲,王良治,刘东元,吕林,廖秀冬,罗绪刚

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

SHAO YuXin,ZHANG LiYang,MA XueLian,WANG LiangZhi,LIU DongYuan,LÜ Lin,LIAO XiuDong,LUO XuGang

表5 牧草类饲料中锌含量分布（风干基础）

Table 5 Distribution of Zn contents in pasture 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 锌含量 Zn contents (mg·kg-1) 羊草 Leymus chinensis 7 34 24.7±14.7 黑麦草 Ryegrass 16 72 32.3±27.7 苜蓿 Alfalfa 25 93 25.9±15.0 青贮玉米 Corn silage 23 87 23.4±13.2 P值P value 0.493 总体平均值Total average 26.4