我国畜禽饲料资源中常量元素钙含量分布的调查

陈志勇,张丽阳,马雪莲,王良治,邢冠中,杨柳,刘东元,廖秀冬,李素芬,黄艳玲,吕林,罗绪刚

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

CHEN ZhiYong,ZHANG LiYang,MA XueLian,WANG LiangZhi,XING GuanZhong,YANG Liu,LIU DongYuan,LIAO XiuDong,LI SuFen,HUANG YanLing,LÜ Lin,LUO XuGang

表4 牧草类饲料中钙含量分布（风干基础）

Table 4 Distribution of Ca contents in forge feeds (air-dry basis)

品名 Name of samples 省（市、区）数 No. of provinces (cities, regions) 样品数 No. of samples Ca含量 Ca content (mg·kg-1) 变异系数 Coefficient of variation (%) 羊草Leymus chinensis 7 35 4157±2979b 71.7 黑麦草Ryegrass 16 72 4192±1806b 43.1 苜蓿Alfalfa 25 93 13963±4231a 30.3 青贮玉米Corn silage 23 87 4354±4117b 94.6 P值 P value 0.0001 总平均值Total average 6667