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6 矿物质饲料中钙含量分布（风干基础）

Table 6 Distribution of Ca contents in mineral 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 (%) 石粉Limestone 18 65 36.6±3.8b 10.4 磷酸氢钙 Calcium phosphate 13 45 23.0±2.0c 8.70 贝壳粉 Shell meal 5 9 41.2±1.1a 2.67 骨粉 Bone meal 15 26 19.2±4.6d 24.0 P值 P value 0.0001 总平均值Total average 30