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5 秸秆类饲料中钙含量分布(风干基础)
Table 5 Distribution of Ca contents in straw 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 (%)
玉米秸 Corn straw 30 84 4631±1716b 37.1
小麦秸 Wheat straw 24 57 1931±753c 39.0
稻秸 Rice straw 29 84 3792±1418b 37.4
甘薯藤 Sweet potato vines 12 21 13524±3730a 27.6
PP value 0.0001
总平均值Total average 5969